CN113226536A - Combined use of plate heat exchanger and exothermic reactor - Google Patents
Combined use of plate heat exchanger and exothermic reactor Download PDFInfo
- Publication number
- CN113226536A CN113226536A CN202080007296.3A CN202080007296A CN113226536A CN 113226536 A CN113226536 A CN 113226536A CN 202080007296 A CN202080007296 A CN 202080007296A CN 113226536 A CN113226536 A CN 113226536A
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- CN
- China
- Prior art keywords
- reactor
- heat exchanger
- plate heat
- exothermic
- feed
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00256—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles in a heat exchanger for the heat exchange medium separate from the reactor
-
- 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
- B01J2219/00096—Plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0022—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for chemical reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
本发明涉及进行一个或多个放热反应的方法，其中板式换热器用作与两个或更多个并行操作的反应器连接的进料/流出物交换器。反应器在高于30bar绝对压力下进行放热反应。
The present invention relates to a process for carrying out one or more exothermic reactions wherein a plate heat exchanger is used as a feed/effluent exchanger connected to two or more reactors operating in parallel. The reactor conducts the exothermic reaction at a pressure above 30 bar absolute.
Description
Technical Field
The present invention relates to the use of a plate heat exchanger as a feed/effluent heat exchanger in a multiple reactor system.
Background
A plate heat exchanger is usually formed by an elongated watertight chamber and a bundle of plates arranged in the chamber and providing free space for it. A plate bundle consists of a stack of mutually parallel plates between which a double circuit is provided for two independent and usually counter-current fluid flows.
A plate heat exchanger is a compact, cost-effective heat exchanger solution that can be used as long as the process conditions allow. High pressure and heavy duty feed streams above 10-20 bar represent a typical limitation in the use of plate heat exchangers in industry.
Many exothermic reaction systems involve the use of one or more feed/effluent exchangers E, as shown in the figure. The principle is that the cold feed gas (1) is heated by the outlet gas (2) from the reactor R. The absolute pressure in such feed/effluent exchangers can be very high, i.e. up to several hundred bar, but the pressure difference is limited to only the pressure drop in the reactor system, which can be kept below 20 bar, preferably below 10 bar. This allows the use of a plate heat exchanger as feed/effluent exchanger, provided it is installed in a pressure shell capable of withstanding high absolute pressures.
With regard to the prior art, US 9.120.068 describes a chemical isothermal reactor with an internal plate heat exchanger having heat exchange radial plates and radial ducts parallel to the sides of the plates for distributing and collecting the heat exchange fluid. A portion of the radial conduit has a smaller cross-section proximate the inner junction end.
WO 2007/096699 describes a multiple reactor chemical production system in which multiple reactors in a common pressure shell are connected one after the other to multiple plate feed/effluent exchangers in a common pressure shell.
In EP 3401299 a1, a reactor for carrying out exothermic equilibrium reactions, in particular for the synthesis of methanol by heterogeneous catalytic conversion of synthesis gas, is described. The reactor can be readjusted and thus the reaction conditions are optimized along the longitudinal coordinate of the reactor. It is divided into a plurality of reaction cells connected in series, each reaction cell comprising a preheating zone, a cooled reaction zone, one or more cooling zones and a deposition zone for condensable reaction products. In this way, the reaction conditions can be adjusted to the respective local composition of the reaction mixture and are variable over the length of the reactor.
The advantages of the shell and tube heat exchanger are obtained by comparing the standard shell and tube heat exchanger with the plate heat exchanger in the pressure shell. For large capacity reactor systems where two or more reactors operating in parallel are connected to two or more shell-and-tube feed/effluent exchangers, it has been found that these exchangers can be replaced by a single plate heat exchanger in the pressure shell, resulting in significant cost savings.
Disclosure of Invention
The present invention therefore relates to a process for carrying out one or more exothermic reactions, in which a plate heat exchanger is used as a feed/effluent exchanger connected to two or more reactors operating in parallel at an absolute pressure higher than 30bar to carry out the exothermic reaction.
The reactor is preferably a boiling water reactor, a quench type reactor, an adiabatic reactor, or any combination of these reactors operating in series.
In the process according to the invention, the main reaction in the reactor is preferably the conversion of synthesis gas to methanol or ammonia or dimethyl ether (DME), or any other exothermic reaction.
In one aspect, the present invention provides a method: wherein
(a) Using a plate heat exchanger as a feed/effluent exchanger connected to two or more reactors operating in parallel at an absolute pressure higher than 30bar and carrying out one or more exothermic reactions;
(b) wherein the reactor in (a) is a boiling water reactor or a quench type reactor or an adiabatic reactor, or any combination of these reactors working in series,
(c) and wherein the main reaction in reactors (a) and (b) is the conversion of synthesis gas to methanol or ammonia or dimethyl ether (DME), or any other exothermic reaction.
The present invention is described in more detail in the following examples.
Examples
For a large methanol plant producing 5000MT methanol per day, 3 boiling water reactors in parallel were required, and the standard use of 3 shell-and-tube feed/effluent heat exchangers was compared with the use of only one plate heat exchanger installed in the pressure shell. In this way, the cost is reduced by more than 25%.
Claims (3)
1. A process for carrying out one or more exothermic reactions wherein a plate heat exchanger is used as a feed/effluent exchanger connected to two or more reactors operating in parallel at an absolute pressure above 30bar to carry out the exothermic reaction.
2. The process of claim 1, wherein the reactor is a boiling water reactor, a quench-type reactor, an adiabatic reactor, or any combination of these reactors operating in series.
3. The process according to claim 1 or 2, wherein the main reaction in the reactor is the conversion of syngas to methanol or ammonia or dimethyl ether (DME), or any other exothermic reaction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201900151 | 2019-02-01 | ||
| DKPA201900151 | 2019-02-01 | ||
| PCT/EP2020/051905 WO2020156994A1 (en) | 2019-02-01 | 2020-01-27 | Use of plate heat exchangers in combination with exothermal reactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113226536A true CN113226536A (en) | 2021-08-06 |
Family
ID=71839950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080007296.3A Pending CN113226536A (en) | 2019-02-01 | 2020-01-27 | Combined use of plate heat exchanger and exothermic reactor |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN113226536A (en) |
| AR (1) | AR117912A1 (en) |
| AU (1) | AU2020214700A1 (en) |
| WO (1) | WO2020156994A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498199A (en) * | 2001-11-11 | 2004-05-19 | �״� | Process and plant for heterogeneous synthesis of chemical compounds |
| CN1856462A (en) * | 2003-09-24 | 2006-11-01 | 巴斯福股份公司 | Method for controlling the reactor admission temperature during the production of methylamine |
| CN101514134A (en) * | 2008-02-23 | 2009-08-26 | 中国石化集团洛阳石油化工工程公司 | Method for adjusting feed temperature in reaction of transforming compound containing oxygen into olefin |
| US20090221722A1 (en) * | 2005-09-23 | 2009-09-03 | James Andrew Banister | Multiple Reactor Chemical Production System |
| US20180237366A1 (en) * | 2015-08-12 | 2018-08-23 | Haldor Topsøe A/S | Novel process for methanol production from low quality synthesis gas |
| CN108463449A (en) * | 2016-01-15 | 2018-08-28 | 庄信万丰戴维科技有限公司 | Methanol process |
| CN108884008A (en) * | 2016-03-30 | 2018-11-23 | 托普索公司 | Methanol synthesizing process for mass production capacity is laid out |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180846B1 (en) * | 1998-09-08 | 2001-01-30 | Uop Llc | Process and apparatus using plate arrangement for combustive reactant heating |
| DE102007024379A1 (en) * | 2007-05-23 | 2008-11-27 | Mingatec Gmbh | Plate apparatus for heat transfer operations |
| EP2090355A1 (en) | 2008-02-18 | 2009-08-19 | Methanol Casale S.A. | Isothermal chemical reactor with plate heat exchanger |
| DE102009033661A1 (en) * | 2009-07-17 | 2011-01-20 | Bayer Technology Services Gmbh | Heat exchanger module and heat exchanger in a compact design |
| WO2015142858A1 (en) * | 2014-03-18 | 2015-09-24 | Quanta Associates, L.P. | Treatment of heavy crude oil and diluent |
| CN105399604B (en) * | 2015-10-12 | 2018-12-04 | 上海国际化建工程咨询公司 | A kind of energy-saving ultra-large methane synthesizing method and device producing different brackets steam |
| EP3401299B1 (en) | 2017-05-12 | 2021-11-03 | L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Reactor for carrying out exothermic equilibrium reactions |
-
2020
- 2020-01-27 CN CN202080007296.3A patent/CN113226536A/en active Pending
- 2020-01-27 WO PCT/EP2020/051905 patent/WO2020156994A1/en active Application Filing
- 2020-01-27 AU AU2020214700A patent/AU2020214700A1/en active Pending
- 2020-01-29 AR ARP200100229A patent/AR117912A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498199A (en) * | 2001-11-11 | 2004-05-19 | �״� | Process and plant for heterogeneous synthesis of chemical compounds |
| CN1856462A (en) * | 2003-09-24 | 2006-11-01 | 巴斯福股份公司 | Method for controlling the reactor admission temperature during the production of methylamine |
| US20090221722A1 (en) * | 2005-09-23 | 2009-09-03 | James Andrew Banister | Multiple Reactor Chemical Production System |
| CN101514134A (en) * | 2008-02-23 | 2009-08-26 | 中国石化集团洛阳石油化工工程公司 | Method for adjusting feed temperature in reaction of transforming compound containing oxygen into olefin |
| US20180237366A1 (en) * | 2015-08-12 | 2018-08-23 | Haldor Topsøe A/S | Novel process for methanol production from low quality synthesis gas |
| CN108463449A (en) * | 2016-01-15 | 2018-08-28 | 庄信万丰戴维科技有限公司 | Methanol process |
| CN108884008A (en) * | 2016-03-30 | 2018-11-23 | 托普索公司 | Methanol synthesizing process for mass production capacity is laid out |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020214700A1 (en) | 2021-06-10 |
| WO2020156994A1 (en) | 2020-08-06 |
| AR117912A1 (en) | 2021-09-01 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |
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| RJ01 | Rejection of invention patent application after publication |