WO2017193672A1 - Procédé et système de traitement de l'oxyde nitrique dans les gaz d'échappement d'automobiles - Google Patents

Procédé et système de traitement de l'oxyde nitrique dans les gaz d'échappement d'automobiles Download PDF

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WO2017193672A1
WO2017193672A1 PCT/CN2017/074903 CN2017074903W WO2017193672A1 WO 2017193672 A1 WO2017193672 A1 WO 2017193672A1 CN 2017074903 W CN2017074903 W CN 2017074903W WO 2017193672 A1 WO2017193672 A1 WO 2017193672A1
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Prior art keywords
exhaust gas
nitric oxide
automobile
exhaust
gas
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PCT/CN2017/074903
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English (en)
Chinese (zh)
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崔翠翠
黄安武
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • F01N2570/145—Dinitrogen oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to the technical field of automobiles, and particularly relates to a nitric oxide treatment method in automobile exhaust gas and a nitric oxide treatment system in automobile exhaust gas.
  • the emission of automobile exhaust is a matter of great concern to the society.
  • the exhaust gas emitted by automobiles contains various harmful gases including carbon monoxide (CO) and nitrogen monoxide (NO). These gases cause environmental pollution on the one hand, and on the other hand It can cause personal injury.
  • CO carbon monoxide
  • NO nitrogen monoxide
  • nitric oxide in automobile exhaust is a colorless, odorless, water-soluble toxic gas. Because nitric oxide carries free radicals, it makes its chemical properties very active, once it is discharged into the air as automobile exhaust. After reacting with oxygen, a corrosive gas, nitrogen dioxide, is formed. Inhalation of nitrogen dioxide in the early stage will have mild eye and upper respiratory tract irritation, such as pharyngeal discomfort, dry cough, etc., and after a few hours of incubation, chest tightness, respiratory distress, cough, sputum, cyanosis, etc. It may even make people faint.
  • the present invention aims to provide a method and system for treating nitric oxide in automobile exhaust gas, which can effectively treat the nitrogen monoxide in the exhaust gas discharged in an over-limit manner in time, and reduce the exhaust gas to the environment. Pollution and personal injury.
  • the present invention adopts the following technical solutions:
  • a method for treating nitric oxide in automobile exhaust gas comprising the following steps:
  • the process of discharging exhaust gas into a photocatalytic reactor for nitric oxide treatment comprises:
  • V NO is the reference speed
  • r is the rotational speed of the automobile engine
  • C is the concentration of nitrogen monoxide
  • T is the current temperature in the photocatalytic reactor
  • P is the outlet of the exhaust pipe of the automobile engine obtained in step S101.
  • the value of the exhaust pressure, a is a constant conversion coefficient, ranging from 0.15 to 0.3.
  • the invention also provides a nitric oxide treatment system in automobile exhaust gas, comprising:
  • An exhaust pressure value obtaining module for obtaining an exhaust pressure value at an outlet of the exhaust pipe of the automobile engine
  • the detecting module is configured to analyze the exhaust gas at the outlet of the automobile exhaust gas purifier when the exhaust gas pressure value reaches a predetermined value, and obtain the type and content of various harmful gases in the exhaust gas;
  • An identification module for identifying each harmful gas according to the type of harmful gas
  • the first judging module is configured to judge whether the exhaust gas is an exhaust gas exceeding the limit according to the content of various harmful gases
  • a second judging module configured to determine, according to the identifier, whether the harmful gas discharged from the exhaust gas contains only nitric oxide according to the identifier when the judgment result of the first judging module is YES;
  • a nitric oxide treatment module configured to generate a catalytic reaction command when the determination result of the second determining module is YES, and discharge the exhaust gas into the photocatalytic reactor through the catalytic reaction instruction to perform nitric oxide treatment;
  • the nitric oxide treatment module includes:
  • a concentration calculation module configured to determine a concentration of nitric oxide in the exhaust gas according to the content of the harmful gas
  • a parameter acquisition module for acquiring the rotational speed of the automobile engine and the current temperature in the photocatalytic reactor in real time
  • a speed control module configured to calculate a reference speed according to the rotation speed, current temperature, concentration, and the exhaust pressure value, and adjust a speed of exhaust gas emission into the photocatalytic reactor according to the reference speed;
  • V NO is the reference speed
  • r is the rotational speed of the automobile engine
  • C is the concentration of nitrogen monoxide
  • T is the current temperature in the photocatalytic reactor
  • P is the outlet of the exhaust pipe of the automobile engine obtained in step S101.
  • the value of the exhaust pressure, a is a constant conversion coefficient, between 0.15-0.3;
  • a carbon monoxide treatment module configured to generate an absorption command if the harmful gas exceeding the limit emission in each exhaust gas further contains carbon monoxide according to the mark, and discharge the exhaust gas to have carbon monoxide through the absorption command after the nitric oxide is processed
  • the carbon monoxide treatment is carried out in a container of the absorbent.
  • the nitric oxide treatment method and system in the automobile exhaust gas of the present invention detects the type and content of the harmful gas contained in the automobile exhaust gas, and identifies various harmful gases. According to the identification and content, the harmful gases discharged beyond the standard will be treated separately, and the nitric oxide will be discharged into the photocatalytic reactor for treatment to achieve targeted treatment of harmful gases, which can effectively improve the efficiency of exhaust gas treatment and avoid automobile exhaust. Causes pollution to the environment and personal injury.
  • FIG. 1 is a schematic flow chart of a method for treating nitric oxide in automobile exhaust gas according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a nitric oxide treatment system in an automobile exhaust gas according to an embodiment of the present invention.
  • a method for treating nitric oxide in an automobile exhaust gas includes the following steps:
  • step S101 the exhaust pressure value at the outlet of the exhaust pipe of the automobile engine is obtained. Since the car produces different power on different roads or when the speed of the car is different, the exhaust pressure at the outlet of the exhaust pipe of the automobile engine is also different. When the exhaust pressure value is different, the content of harmful gases contained in the exhaust gas at the outlet of the exhaust pipe of the engine is also different.
  • Step S102 when the exhaust pressure value reaches a predetermined value, analyzing the exhaust gas at the outlet of the automobile exhaust gas purifier to obtain the type and content of various harmful gases in the exhaust gas.
  • the exhaust gas of the automobile exhaust gas purifier outlet is detected, which can effectively reduce the number of times and time of using the equipment used in the process, and prolong the service life of the equipment. .
  • multiple gas detectors can be utilized to divide the exhaust gas According to the analysis, the type and content of harmful gases contained in the exhaust gas can be separately detected and analyzed by each gas detector. When the content of all harmful gases in the exhaust gas discharged from the outlet of the automobile exhaust gas purifier per unit time is greater than or equal to M%, the harmful gas exceeds the standard. This M is a positive number, which can be set according to actual needs.
  • the gas detector described above should include at least one detector for detecting the content of nitric oxide in the exhaust gas.
  • each harmful gas is identified according to the type of the harmful gas. Harmful gases can be identified based on the results detected by different gas detectors.
  • step S104 it is determined whether the exhaust gas is an exhaust gas that exceeds the limit according to the content of various harmful gases. If yes, it indicates that at least one harmful gas in the exhaust gas exceeds the national standard. At this time, step S105 is performed to realize the treatment of the exhaust gas discharged from the limit according to the mark. Otherwise, it means that the vehicle exhaust has no harmful gas or even rarely to be negligible. At this time, it returns to step S101 to continue monitoring.
  • step S105 if yes, it is determined according to the identifier whether the harmful gas discharged from the exhaust gas contains only nitric oxide. If yes, it means that in addition to the high content of nitrogen monoxide in the exhaust gas, other harmful gases are within the standard range, and step S106 can be performed at this time.
  • Step S106 if the result of the determination in step S104 is YES, that is, according to the identifier, it is determined that the harmful gas discharged from each exhaust gas contains only nitric oxide, and a catalytic reaction command is generated, and the exhaust gas is discharged to the photocatalyst through the catalytic reaction command.
  • the treatment is carried out in the reactor.
  • the exhaust gas can be absorbed by the exhaust gas having a photocatalytic reaction layer of titanium dioxide and ultraviolet rays by ultraviolet light. Since this embodiment is for secondary treatment of automobile exhaust gas, usually in automobile exhaust gas. Content of harmful substances Often lower, so nitrogen monoxide can be completely absorbed by photocatalytic reaction.
  • the process of real-time monitoring of the exhaust gas at the outlet of the automobile exhaust gas purifier and analyzing the exhaust gas to obtain the kinds and contents of various harmful gases in the exhaust gas may include the following steps:
  • automobile exhaust gas usually contains various harmful gases such as nitrogen oxides, hydrocarbons, sulfur oxides, and nitrogen oxides.
  • Each of these gases has a specific characteristic absorption band and characteristic frequency that is strongly absorbed when the infrared spectrum falls near the characteristic frequency band. Therefore, the infrared spectrum of the corresponding characteristic frequency can be used to detect the components of the harmful gas in the exhaust gas, and the amount of the absorbed external spectrum can detect the content of the corresponding gas.
  • the method may further include the step of sequentially filtering and amplifying the electrical signal.
  • the electrical signal can be filtered and amplified by the filtering circuit and the amplifying circuit respectively. After filtering and amplifying the electrical signal, the accuracy of the electrical signal detection can be effectively improved.
  • step S105 if it is determined in step S105 that the harmful gas exceeding the limit in each exhaust gas further contains carbon monoxide, an absorption command may be generated, and after the nitric oxide is processed, the exhaust gas is exhausted by the absorption command.
  • the carbon monoxide treatment is carried out in a vessel having a carbon monoxide absorbent.
  • the carbon monoxide absorbent may be a composition composed of a porous inorganic carrier and a binary complex of a nitride and copper chloride carried thereon, and nitrogen in the composition
  • the compound may comprise from 0.4 to 0.8 molar ratio.
  • the inorganic carrier may be: porous ceramic, activated carbon or titanium oxide.
  • the nitride can be: pyridine and Composition and the like. The carbon monoxide absorbent can effectively absorb carbon monoxide in the exhaust gas.
  • the process of discharging the exhaust gas into the photocatalytic reactor for performing the nitric oxide treatment may specifically include:
  • the current temperature can be obtained by placing a temperature sensor in the photocatalytic reactor;
  • a reference speed is calculated based on the rotational speed, the current temperature, the concentration, and the exhaust pressure value, and the speed at which the exhaust gas is discharged into the photocatalytic reactor is adjusted according to the reference speed.
  • V NO is the reference speed
  • r is the rotational speed of the automobile engine
  • C is the concentration of nitrogen monoxide
  • T is the current temperature in the photocatalytic reactor
  • P is the outlet of the exhaust pipe of the automobile engine obtained in step S101.
  • the value of the exhaust pressure, a is a constant conversion factor, between 0.15-0.3.
  • the following steps may be further included:
  • the separated nitrogen is discharged and the separated carbon dioxide is stored.
  • nitrogen gas may float above the carbon dioxide after being pressurized to a certain range.
  • the pressure treatment is carried out in a container having an opening at the upper end. When the pressure in the container is sufficient to separate the carbon dioxide and the nitrogen gas, the upper end opening is opened to discharge the nitrogen gas, so that carbon dioxide can be collected.
  • carbon dioxide emissions cause environmental pollution in the air, they can be used in industrial and agricultural production, so that carbon dioxide can be effectively utilized to avoid environmental pollution.
  • the present invention also provides a nitric oxide treatment system in an automobile exhaust gas, comprising:
  • the exhaust pressure value obtaining module 101 is configured to obtain an exhaust pressure value at an outlet of the exhaust pipe of the automobile engine
  • the detecting module 102 is configured to analyze the exhaust gas at the outlet of the automobile exhaust gas purifier when the exhaust gas pressure value reaches a predetermined value, and obtain the type and content of various harmful gases in the exhaust gas;
  • the identification module 103 is configured to identify each harmful gas according to the type of the harmful gas
  • the first determining module 104 is configured to determine, according to the content of various harmful gases, whether the exhaust gas is an exhaust gas that exceeds the limit emission;
  • the second judging module 105 is configured to determine, according to the identifier, whether the harmful gas discharged from the exhaust gas contains only nitric oxide according to the identifier when the judgment result of the first judging module 104 is YES;
  • the nitric oxide processing module 106 is configured to generate a catalytic reaction command when the determination result of the second determining module 105 is YES, and discharge the exhaust gas into the photocatalytic reactor through the catalytic reaction command to perform nitric oxide treatment.
  • the nitric oxide treatment system in the automobile exhaust gas of the present invention may further include:
  • a carbon monoxide treatment module configured to generate an absorption command if the harmful gas exceeding the limit emission in each exhaust gas further contains carbon monoxide according to the mark, and discharge the exhaust gas to have carbon monoxide through the absorption command after the nitric oxide is processed
  • the carbon monoxide treatment is carried out in a container of the absorbent.
  • the nitric oxide treatment module may include:
  • a concentration calculation module configured to determine a concentration of nitric oxide in the exhaust gas according to the content of the harmful gas
  • a parameter acquisition module for acquiring the rotational speed of the automobile engine and the current temperature in the photocatalytic reactor in real time
  • a speed control module configured to calculate a reference speed based on the rotational speed, current temperature, concentration, and the exhaust pressure value, and adjust a velocity of exhaust gas emission into the photocatalytic reactor according to the reference speed.
  • nitric oxide treatment system in the above-mentioned automobile exhaust gas
  • the other technical features of the nitric oxide treatment system in the above-mentioned automobile exhaust gas are the same as the nitric oxide treatment method in the automobile exhaust gas of the present invention, and are not described herein.
  • the nitric oxide treatment method and system in the automobile exhaust gas of the present invention mainly performs secondary treatment on the automobile exhaust gas, and detects and is harmful to various types of harmful gases contained in the automobile exhaust gas.
  • the gas is marked, and the harmful gases discharged beyond the standard are separately treated according to the label and content, and the nitric oxide is mainly discharged into the photocatalytic reactor for treatment, and the targeted treatment of harmful gases is realized, and the efficiency of the exhaust gas treatment can be effectively improved.
  • automobile exhaust gas purifiers in the embodiments of the present invention may be prior art.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un procédé de traitement de l'oxyde nitrique dans les gaz d'échappement d'automobiles, ledit procédé comprenant les étapes suivantes : obtenir une valeur de pression d'échappement au niveau d'une sortie de tuyau d'échappement d'un moteur d'automobile (S101) ; lorsque la valeur de pression d'échappement atteint une valeur prédéfinie, analyser des gaz d'échappement d'une sortie d'épurateur de gaz d'échappement d'automobile, et obtenir des types et des quantités de divers gaz nocifs dans le gaz d'échappement (S102) ; identifier les divers gaz nocifs en fonction des types de gaz nocifs (S103) ; déterminer si le gaz d'échappement est un gaz d'échappement à émission excessive en fonction des quantités des divers gaz nocifs (S104) ; si c'est le cas, en fonction de l'identification, déterminer si les gaz nocifs d'émission hors limite dans le gaz d'échappement comprennent uniquement de l'oxyde nitrique (S105) ; si tel est le cas, générer une commande de réaction catalytique, et par l'intermédiaire de la commande de réaction catalytique, évacuer le gaz d'échappement vers un réacteur photocatalytique destiné au traitement de l'oxyde nitrique (S106). L'invention concerne également un système de traitement de l'oxyde nitrique dans des gaz d'échappement d'automobiles. Le procédé et le système de traitement de l'oxyde nitrique traitent efficacement l'oxyde nitrique dans des gaz d'échappement d'automobile à émission excessive en temps opportun, et réduisent la pollution de l'environnement et les lésions corporelles.
PCT/CN2017/074903 2016-05-09 2017-02-26 Procédé et système de traitement de l'oxyde nitrique dans les gaz d'échappement d'automobiles Ceased WO2017193672A1 (fr)

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CN201610300202.7A CN105781693A (zh) 2016-05-09 2016-05-09 汽车尾气中的一氧化氮处理方法及系统
CN201610300202.7 2016-05-09

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CN112798552A (zh) * 2020-12-30 2021-05-14 安徽宝龙环保科技有限公司 一种尾气遥测系统以及方法
CN113513419A (zh) * 2021-03-29 2021-10-19 广西玉柴机器股份有限公司 一种调整发动机后处理热处理系统的方法及发动机控制器

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CN105822391A (zh) * 2016-05-09 2016-08-03 饶川辉 汽车尾气中的二氧化氮处理方法及系统
CN105781693A (zh) * 2016-05-09 2016-07-20 饶川辉 汽车尾气中的一氧化氮处理方法及系统
CN105927339A (zh) * 2016-05-09 2016-09-07 饶川辉 处理尾气中一氧化氮的方法及系统

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CN104707475A (zh) * 2015-04-03 2015-06-17 中南大学 一种低温光催化自氧化还原同时脱硫脱硝的烟气处理方法
CN105781693A (zh) * 2016-05-09 2016-07-20 饶川辉 汽车尾气中的一氧化氮处理方法及系统
CN105927339A (zh) * 2016-05-09 2016-09-07 饶川辉 处理尾气中一氧化氮的方法及系统

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CN102434253A (zh) * 2011-09-29 2012-05-02 华北电力大学 一种汽车尾气三级处理装置及其分离方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112798552A (zh) * 2020-12-30 2021-05-14 安徽宝龙环保科技有限公司 一种尾气遥测系统以及方法
CN113513419A (zh) * 2021-03-29 2021-10-19 广西玉柴机器股份有限公司 一种调整发动机后处理热处理系统的方法及发动机控制器
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