Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
  • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
  • C10J3/46—Gasification of granular or pulverulent flues in suspension
  • C10J3/463—Gasification of granular or pulverulent flues in suspension in stationary fluidised beds
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
  • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
  • C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
  • C01B3/32—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air
  • C01B3/34—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents
  • C01B3/36—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents using oxygen; using mixtures containing oxygen as gasifying agents
  • C01B3/363—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents using oxygen; using mixtures containing oxygen as gasifying agents characterised by the burner
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
  • C10J2300/00—Details of gasification processes
  • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
  • C10J2300/0913—Carbonaceous raw material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
  • C10J2300/00—Details of gasification processes
  • C10J2300/12—Heating the gasifier
  • C10J2300/1223—Heating the gasifier by burners
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
  • C10J2300/00—Details of gasification processes
  • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
  • C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
  • C10J2300/00—Details of gasification processes
  • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
  • C10J2300/1846—Partial oxidation, i.e. injection of air or oxygen only

Definitions

• This invention relates to a process for the generation of synthesis gas, i.e. carbon monoxide and hydrogen.
• synthesis gas i.e. carbon monoxide and hydrogen.
• it concerns a method for operating an annular burner for the preparation of synthesis gas by the partial oxidation of hydrocarbon fuels.
• Another object of this invention is to provide a continuous process by which a hydrocarbon fuel and oxygen may be economically and efiiciently combined and reacted for the production of synthesis gas.
• a still further object of this invention is to provide an improved process for producing synthesis gas in which the life of the burner is extended.
• the method of the invention is generally applicable in burner constructions known for the partial oxidation of hydrocarbon fuels with oxygen.
• These burners consist in general of a plurality of concentrically arranged tubes.
• the burner comprises an outer conduit, an inner conduit, and an annular passage between said inner and outer conduits.
• the hydrocarbon fuel optionally admixed with substantially all of the steam or CO or both if required for the reaction, is passed through the annular passage of the burner while the oxygen required for the partial combustion plus a relatively smaller amount of steam is passed through the inner tube.
• the requisite steam which is added to the oxygen in the inner conduit can be taken from the main quantity of steam which is ordinarily mixed with the charged hydrocarbon fuel, Without requiring an increase in the total amount of steam supplied to the generator. Steam in the amount of about 0.5 to about 5 weight percent (basis weight of free oxygen supplied to the burner, and preferably 1.0 to 3.0%) is admixed with the oxygen.
• This method of operation also makes possible the easy flushing of the inner tube of the burner with steam, either during or after shutdown. Examples of suitable burners are described in German Pat. 1,061,303 (US. Pat. 2,928,- 459) and German Pat. 1,080,079 (U.S. Pat. 2,925,460).
• Suitable hydrocarbon charge stocks include gaseous and liquid hydrocarbon fuels, e.g., methane, gasoline, but particularly crude oil or heavy fuel oil. These hydrocarbon fuels and optionally steam are mixed in a suitable device and, in certain cases after preheating to 250 to 500 C., (482 to 932 F.), the mixture is passed through the annulus of the burner.
• the oxygen required for the heating and partial combustion is suitably preheated, mixed with steam, and is passed through the inner tube of the burner.
• substantially pure oxygen 95 mole percent or more
• the relatively small amount of steam that is mixed with the oxygen according to this invention does not affect the pressure (1 to 350 atmospheres) and the temperature (about 2000 to 3000" F.) in the reaction zone of the synthesis gas generator.
• the method can also be carried out so that the steam is introduced through a branch line discharging into the burner directly before the introduction of the oxygen supply line. In this manner it is possible to feed the steam to the reaction zone only after successful ignition.
• the preventive measure of the present invention is possible without great expense and can therefore also be incorporated relatively easily into existing plants.
• the synthesis gas generator consists of a conventional compact unpacked free-flow noncatalytic refractory lined steel pressure vessel of the type described in U.S. Pat. 2,809,104 issued to Dale M. Strasser et al.
• the reactants are reacted in the reaction zone following the burner at a temperature of 1350 C. (2462 F.). 49,000 N cu. m./hr. (1,830,000 s.c.f./hr.) of synthesis gas is produced having the following analysis in mole percent dry basis 47.7% H 45.5% CO; 5.1% CO and 1.7% inerts.
• the burner operates trouble free and after an operating period of 30 days the center conduit shows no dimensional change at the burner nozzle.
• run 2 is made under the same conditions as described previously for run 1 but without adding steam to the oxygen.
• the center conduit may be observed to have shortened about 3 to 15 mm. (0.12 to 0.60 inch.) This reduction in length of the center conduit leads to irregularities in the burning, for example short term quick changes in pressure drop in the burner.
• reaction being one which in the absence of supplemental steam added to said substantially pure oxygen would result in relatively rapid erosion and oxygen attack of the nozzle tip of said central conduit
• improvement which comprises mixing said stream of substantially pure oxygen with about 0.5 to 5.5 weight percent of steam (basis weight of free oxygen supplied to the burner) to produce a mixture of steam and substantially pure oxygen, introducing said mixture into said reaction zone by way of said center conduit, and simultaneously passing a stream of said hydrocarbon fuel optionally in admixture with said temperature moderator through said annular passage, wherein said materials are reacted without causing substantial erosion and oxygen attack to the nozzle tip of said central conduit.
• thermo moderator is selected from the group consisting of H 0, CO and mixtures thereof.
• hydrocarbon fuel is selected from the group consisting of methane, gasoline, crude oil, and heavy fuel oil.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Inorganic Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Hydrogen, Water And Hydrids (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5724374

Family Applications (1)

Country Status (11)

Cited By (7)

Families Citing this family (1)

• 1970
  • 1970-01-23 GB GB3362/70A patent/GB1268473A/en not_active Expired
  • 1970-01-26 US US00005937A patent/US3738940A/en not_active Expired - Lifetime
  • 1970-01-26 YU YU00181/70A patent/YU39000B/xx unknown
  • 1970-01-26 BE BE744953D patent/BE744953A/xx not_active IP Right Cessation
  • 1970-01-29 SE SE01145/70A patent/SE366278B/xx unknown
  • 1970-01-30 DK DK44370AA patent/DK128236B/da not_active IP Right Cessation
  • 1970-01-31 KR KR7000169A patent/KR780000100B1/ko not_active Expired
  • 1970-02-02 JP JP889870A patent/JPS554682B1/ja active Pending
  • 1970-02-02 ES ES376137A patent/ES376137A1/es not_active Expired
  • 1970-02-03 NL NL7001481A patent/NL7001481A/xx unknown
  • 1970-02-04 FR FR7003874A patent/FR2032726A5/fr not_active Expired

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