WO2006122498A1 - Airlift circumfluent reactor needing no foreign air source - Google Patents

Airlift circumfluent reactor needing no foreign air source Download PDF

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Publication number
WO2006122498A1
WO2006122498A1 PCT/CN2006/001006 CN2006001006W WO2006122498A1 WO 2006122498 A1 WO2006122498 A1 WO 2006122498A1 CN 2006001006 W CN2006001006 W CN 2006001006W WO 2006122498 A1 WO2006122498 A1 WO 2006122498A1
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Prior art keywords
reactor
gas
air
circulation line
airlift
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Ceased
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PCT/CN2006/001006
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English (en)
French (fr)
Inventor
Dehua Liu
Wei Du
Lilin Li
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Tsinghua University
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Tsinghua University
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Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to AU2006246862A priority Critical patent/AU2006246862B2/en
Priority to ES06741894.7T priority patent/ES2689936T3/es
Priority to US11/914,793 priority patent/US20080226520A1/en
Priority to JP2008511536A priority patent/JP4997227B2/ja
Priority to BRPI0611284A priority patent/BRPI0611284B1/pt
Priority to EP06741894.7A priority patent/EP1882733B1/en
Priority to CA2608839A priority patent/CA2608839C/en
Publication of WO2006122498A1 publication Critical patent/WO2006122498A1/zh
Anticipated expiration legal-status Critical
Priority to NO20080863A priority patent/NO20080863L/no
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2455—Stationary reactors without moving elements inside provoking a loop type movement of the reactants
    • B01J19/246—Stationary reactors without moving elements inside provoking a loop type movement of the reactants internally, i.e. the mixture circulating inside the vessel such that the upward stream is separated physically from the downward stream(s)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2455—Stationary reactors without moving elements inside provoking a loop type movement of the reactants
    • B01J19/2465—Stationary reactors without moving elements inside provoking a loop type movement of the reactants externally, i.e. the mixture leaving the vessel and subsequently re-entering it
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
    • C12M29/08—Air lift
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock

Definitions

  • the invention belongs to the technical field of biochemical and fermentation industries, and in particular provides an airlift loop reactor which does not require external source gas. Background technique .
  • the airlift type circulating bioreactor is a kind of bioreactor that uses gas as a power to mix and circulate liquids. It has the advantages of simple structure, easy amplification, good mass transfer and heat transfer performance, low energy consumption and small damage to cells. It is used more and more widely in biochemical industry, especially in the fermentation industry.
  • the gas-lift circulating reactor widely used in the industry is powered by an external gas source from the bottom of the reactor, and the gas is directly discharged after flowing upward through the reactor.
  • the present invention proposes to directly utilize the gas in the reactor as the circulating power of the liquid in the reactor, which can effectively reduce the cost of the external gas source and reduce the production cost.
  • the reactor can be made into a closed structure, thereby effectively reducing the loss of the reaction raw material. Summary of the invention
  • the reactor of the present invention comprises: a reactor main body, a gas circulation line, an air pump, a jacket, an air inlet, an air outlet, a guide tube, a gas flow meter, a feed port, and a discharge port.
  • the present invention connects the gas outlet at the top of the conventional airlift loop reactor with the inlet of the bottom of the reactor, and installs a gas pump in the gas circulation pipeline, thereby directly utilizing the gas in the reaction system as a circulation. power. After the gas flows out from the top of the reactor, it is returned to the bottom of the reactor through the gas circulation line, and is again injected into the reactor through the gas pump and then circulated as a ring flow force.
  • Gases that can be used as the ring flow force of the reactor of the present invention include: A gas, a gas that participates in the reaction, or a volatile component.
  • an airflow branch can be connected to the gas circulation line, and a single valve is installed on the airflow branch to adjust the pressure.
  • the invention has the advantages that: compared with the conventional airlift loop reactor powered by an external gas source, the airlift loop reactor with the gas source inside the reactor as the ring flow force effectively reduces the external gas.
  • the cost of the source greatly reduces the production cost and can reduce the loss of the reaction raw materials.
  • the present invention is applicable to any biochemical reactor and enzyme reactor in the presence of a gas (including gas participation in reaction, gas generation, and presence of volatile components), including airlift for wastewater treatment and other environmental protection projects. Circulation reactor.
  • the present invention relates to an airlift loop reactor which utilizes lipase to catalyze a transesterification reaction of animal and vegetable oils with methanol to produce biodiesel, wherein the methanol gas which is directly circulated and volatilized is used as a ring flow force of the liquid in the reactor.
  • the invention effectively reduces the consumption of foreign gases, and thus has significant economic significance and good industrial application prospects.
  • Figure 1 is a schematic view showing the structure of a reactor of the present invention.
  • Figure 2 is a schematic view showing the structure of another reactor of the present invention.
  • FIG. 1 A partial enlarged view of an embodiment of the reactor of the present invention and a bottom cross-sectional view of the reactor are shown in FIG. Detailed ways
  • the reactor of the present invention mainly comprises: a reactor main body 1, a gas circulation line 2, a gas pump 3, a jacket 4, an air inlet 5, an air outlet 6, a guide tube 7, a gas flow meter 8, Feed port 9 and discharge port 10.
  • the upper and lower ends of the gas circulation line 2 are respectively connected to the top and bottom of the reactor, and the gas circulation line 2 is also provided with an air pump 3. After the gas flows out from the top of the reactor, it returns to the bottom of the reactor through the gas circulation line 2, and passes through the gas.
  • the pump 3 is again injected into the reactor and then circulated for use as a ring flow force.
  • FIG. 2 shows another embodiment of the reactor of the present invention, which uses a gas continuously generated during the reaction process as a circulating power, wherein an air flow branch 11 is connected to the gas circulation line 2, and on the air flow branch 11 A single valve 12 is installed to regulate the pressure.
  • an airlift type circulating current reactor which is supplied with an external air source, as shown in Figs. 1 and 3.
  • the reactor was 1.2 m high and had an aspect ratio of 6.7, and a guide tube 7 was built therein.
  • the draft tube has a diameter of 110 mm and a height of 600 mm.
  • the shroud divides the interior of the reactor into a central flow zone (zone A) and a toroidal flow zone (zone B) (as shown in Figure 3).
  • the bottom of the reactor has six nozzles evenly distributed over the circular section of the A zone.
  • the reactor can be used as an airlift enzyme reactor for the preparation of biodiesel, using lipase to catalyze the transesterification of animal and vegetable oils and methanol with methanol.
  • the reaction system contains a volatile liquid methanol, which is controlled by an air pump to control the appropriate degree of vacuum, and the volatilized methanol gas is used as a ring flow force of the liquid in the reactor.
  • This loop reactor achieves the same mixing effect as when a foreign gas source is introduced as a ring flow force.
  • the airlift loop reactor without the external source of the present invention effectively reduces the consumption of foreign gases, and has significant economic significance and good industrial application prospects.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Biomedical Technology (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

一种无需外源气的气升式环流反应器 技术领域
本发明属于生物化工及发酵工业技术领域， 特别是提供了一种无 需外源气的气升式环流反应器。 背景技术 .
气升式环流生物反应器是一种以气体作为动力使液体混合和循 环流动的生物反应器， 其具有结构简单、 易放大、 传质传热性能好、 能耗低、对细胞损伤小等优点， 在生物化工尤其是发酵工业中得到越 来越广泛的应用。
目前工业上广泛使用的气升式环流反应器都是从反应器底部通 入外来气源作为动力， 气体向上流过反应器后直接排走。本发明提出 直接利用反应器内的气体作为反应器内液体的循环动力，可以有效减 少外来气源的费用， 降低生产成本。 另外， 直接利用反应体系本身的 气源， 可以将反应器制成封闭结构， 从而有效减少反应原料的损失。 发明内容
本发明的目的是提供一种无外来气源的气升式环流反应器。 本发明反应器包括： 反应器主体、 气体循环管路、 气泵、 夹套、 进气口、 出气口、 导流筒、 气体流量计、 进料口和放料口。
具体而言， 本发明是将普通气升式环流反应器顶部的出气口与反 应器底部的进气口相连通， 并在气体循环管路中安装气泵， 从而直接 利用反应体系中的气体作为环流动力。气体从反应器顶端流出后， 通 过气体循环管路又回到反应器底部，经气泵再次喷射进反应器后又循 环作为环流动力。
可用作本发明反应器的环流动力的气体包括： 反应过程中生成的 气体、 参与反应的气体或易挥发的组分。
如果作为循环动力的气体为反应过程中不断生成的气体， 则在气 体循环管路上还可以接一个气流支路，并在气流支路上安装单项阀来 调节压力。
本发明的优点在于： 与传统的用外来气源作为动力的气升式环流 反应器相比，这种以反应器内部本身气源作为环流动力的气升式环流 反应器有效地减少了外来气源的费用， 大大降低了生产成本， 并且可 以降低反应原料的损失。 本发明适用于体系中有气体存在 (包括有气 体参与反应、 有气体生成以及有易挥发组分存在)的任何生化反应器 及酶反应器， 包括用于废水处理及其它环保项目的气升式环流反应 器。特别是， 本发明涉及利用脂肪酶催化动植物油脂与甲醇进行转酯 反应以制备生物柴油的气升式环流反应器，其中直接循环挥发出的甲 醇气体作为反应器内液体的环流动力。本发明有效地减少了外来气体 的消耗， 因而具有显著的经济意义和很好的工业应用前景。 附图说明
图 1为本发明反应器的结构示意图。
图 2为本发明的另一个反应器的结构示意图。
图 3中给出了本发明反应器的一个实施例的局部放大图和反应器 底部剖面图。 具体实施方式
下面结合附图进一步说明本发明的工作原理和具体结构。
如图 1所示， 本发明反应器主要包括： 反应器主体 1、 气体循环 管路 2、 气泵 3、 夹套 4、 进气口 5、 出气口 6、 导流筒 7、 气体流量 计 8、进料口 9和放料口 10。气体循环管路 2的上下两端分别与反应 器的顶部和底部连通， 并且气体循环管路 2中还安装有气泵 3。 气体 从反应器顶端流出后， 通过气体循环管路 2又回到反应器底部， 经气 泵 3再次喷射进反应器后又循环用作环流动力。
图 2所示为本发明反应器的另一实施方式， 其以反应过程不断生 成的气体作为循环动力，其中在气体循环管路 2上接有一个气流支路 11， 并在气流支路 11上安装单项阀 12以调节压力。 实施例：
作为本发明的一个实例，提供了一个充外来气源的气升式环流反 应器， 如图 1和图 3所示。 所述反应器高 1.2m， 高径比为 6.7， 内设 一个导流筒 7。 所述导流筒的直径为 110mm， 高为 600mm。 所述导 流筒将反应器内部分隔成中心流动区 (A 区)和环行流动区 (B 区） （如 图 3所示）。 该反应器的底部有 6个喷嘴均匀分布在 A区的圆形截面 上。该反应器可以用作制备生物柴油的气升式酶反应器， 使用脂肪酶 催化动植物油脂与甲醇来进行转酯反应。所述反应体系中含有易挥发 的液体甲醇， 通过气泵控制适当的真空度， 利用挥发出的甲醇气体作 为反应器内液体的环流动力。这种环流反应器能达到与通入外来气源 作为环流动力时同样的混合效果。
与普通的通入外来气体的环流反应器相比，本发明的无外来气源 的气升式环流反应器有效地减少了外来气体的消耗，具有显著经济意 义和很好的工业应用前景。

Claims

1、一种无需外源气的气升式环流反应器，其包括：反应器主体 (1)、 气体循环管路 (2)、 气泵 (3)、 夹套 (4)、 进气口 (5)、 出气口 (6)、 导流筒 (7)、气体流量计 (8)、进料口 (9)和放料口 (10)， 其特征在于： 将气升式 环流反应器顶部的出气权口 (6)与反应器底部的进气口 (5)相连通， 并在 气体循环管路 (2)中安装气泵 (3)， 从而直接利用反应体系中的气体作 为环流动力， 使气体在从反应器顶端流出后， 通过气体循环管路 (2) 又回到反应器底部，经气泵 (3)再次喷射进反应器后又循环作为环流动 力。 求
2、 权利要求 1 的反应器， 其中所述作为环流动力的气体包括- 反应过程生成的气体、 参与反应的气体或易挥发的组分。
3、 权利要求 1或 2的反应器， 其中在所述气体循环管路 (2)上接 有一个气流支路 (11)， 并且在所述气流支路 (11)上安装有单项阀 (12) 以调节压力。
4、 权利要求 1的反应器， 其用于使用脂肪酶来催化动植物油脂 与甲醇的转酯反应。
5、 一种无需外源气的气升式环流反应器， 其包括： 反应器主体 (1)、 气体循环管路 (2)、 气泵 (3)、 夹套 (4)、 进气口 (5)、 出气口 (6)、 导 流筒 (7)、气体流量计 (8)、进料口 (9)和放料口 (10)， 在所述气体循环管 路 (2)上接有一个气流支路 (11)， 并且在所述气流支路 (11)上安装有单 项阀 (12)以调节压力， 其特征在于： 将气升式环流反应器顶部的出气 口 (6)与反应器底部的进气口 (5)相连通， 并在气体循环管路 (2)中安装 气泵 (3)，从而直接利用反应体系中的气体作为环流动力，使气体在从 反应器顶端流出后，通过气体循环管路 (2)又回到反应器底部，经气泵 (3)再次喷射进反应器后又循环作为环流动力。
PCT/CN2006/001006 2005-05-20 2006-05-17 Airlift circumfluent reactor needing no foreign air source Ceased WO2006122498A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU2006246862A AU2006246862B2 (en) 2005-05-20 2006-05-17 Airlift circumfluent reactor needing no foreign air source
ES06741894.7T ES2689936T3 (es) 2005-05-20 2006-05-17 Proceso de transesterificación que utiliza un reactor de circulación de aire
US11/914,793 US20080226520A1 (en) 2005-05-20 2006-05-17 Airlift Loop Reactor without the Need for External Gases
JP2008511536A JP4997227B2 (ja) 2005-05-20 2006-05-17 エアリフト型ループリアクター
BRPI0611284A BRPI0611284B1 (pt) 2005-05-20 2006-05-17 reator tipo airlift de circulação fechada
EP06741894.7A EP1882733B1 (en) 2005-05-20 2006-05-17 Transesterification process using an airlift reactor
CA2608839A CA2608839C (en) 2005-05-20 2006-05-17 An airlift loop reactor without the need for external gases
NO20080863A NO20080863L (no) 2005-05-20 2008-02-18 Reaktor med lufttransportkrets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510070863.7 2005-05-20
CNB2005100708637A CN100347284C (zh) 2005-05-20 2005-05-20 一种无需外源气的气升式环流反应器

Publications (1)

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WO2006122498A1 true WO2006122498A1 (en) 2006-11-23

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US (1) US20080226520A1 (zh)
EP (1) EP1882733B1 (zh)
JP (1) JP4997227B2 (zh)
KR (1) KR20080011293A (zh)
CN (1) CN100347284C (zh)
AU (1) AU2006246862B2 (zh)
BR (1) BRPI0611284B1 (zh)
CA (1) CA2608839C (zh)
ES (1) ES2689936T3 (zh)
NO (1) NO20080863L (zh)
RU (1) RU2411288C2 (zh)
SG (1) SG137383A1 (zh)
WO (1) WO2006122498A1 (zh)

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CN102764625A (zh) * 2012-08-15 2012-11-07 吉林大学 高温高压循环搅拌气液相反应釜
CN111686639A (zh) * 2020-05-26 2020-09-22 平罗县祥美化工有限公司 减少尾气排放的反应装置及其生产单氰胺的方法
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EP1882733A4 (en) 2013-04-24
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