CN202191894U - Dimethyl ether synthesis reactor - Google Patents
Dimethyl ether synthesis reactor Download PDFInfo
- Publication number
- CN202191894U CN202191894U CN2011203211665U CN201120321166U CN202191894U CN 202191894 U CN202191894 U CN 202191894U CN 2011203211665 U CN2011203211665 U CN 2011203211665U CN 201120321166 U CN201120321166 U CN 201120321166U CN 202191894 U CN202191894 U CN 202191894U
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- CN
- China
- Prior art keywords
- tower reactor
- heat exchanger
- reactor
- dimethyl ether
- cooling heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
The utility model relates to a synthesis reactor, particularly to a dimethyl ether synthesis reactor which includes a tower reactor and heat exchangers mounted in the tower reactor, and is characterized in that a water-cooled heat exchanger and an air-cooled heat exchanger are mounted in the tower reactor from the top to bottom; a separator is mounted at the upper end of the tower reactor, and an air inlet is mounted at the lower end of the tower reactor; a gas distributor is mounted between the air-cooled heat exchanger in the tower reactor and the air inlet; a water inlet and a water outlet communicated with the water-cooled heat exchanger are mounted on the tower reactor; a hot synthesis gas outlet and a cold synthesis gas inlet that are communicated with the air-cooled heat exchanger are mounted on the tower reactor from top to bottom; and the hot synthesis gas outlet is communicated with the air inlet mounted at the lower end of the tower reactor through a pipeline. The dimethyl ether synthesis reactor can improve the per-pass conversion of CO and the selectivity of dimethyl ether, prolongs the service life of the catalyst, reasonably recovers energy, reduces the production cost, and improves the catalytic effect.
Description
Technical field
The utility model relates to a kind of synthesis reactor, particularly a kind of synthetic reactor of dimethyl ether that is used for.
Background technology
Mainly there is following problem in the reactor of synthesis of dimethyl ether with synthesis gas one-step at present: (1) is for fixed bed reactors; The thermal discharge of one-step method from syngas preparing dimethy ether is very big; Can't in time remove heat, cause the catalytic bed temperature too high, cause normal running to carry out; (2) for gas-liquid-solid catalytic reactor, because the existence of heat carrier can keep the bed reaction temperature; The heat that has solved the one-step method from syngas preparing dimethy ether shifts out problem; Can prevent that bed temperature is too high, but catalysqt deactivation is very fast, can't guarantees the process units long-term operation; (3) gas-solid catalytic reactor, because the wearing and tearing of catalyst, catalyst loss is very fast, operating cost is high, also can't guarantee the process units long-term operation.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes above-mentioned prior art; A kind of have rational temperature distribution and gradient are provided; Catalyst distribution is even, long service life; Can effectively improve simultaneously the selectivity of conversion per pass and the dimethyl ether of CO, the dimethyl ether synthesis reactor that can reduce production costs.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of dimethyl ether synthesis reactor; Comprise tower reactor, be installed in the heat exchanger in the tower reactor; It is characterized in that in tower reactor, being equipped with the gentle cold heat exchanger of water cooling heat exchanger from top to bottom, separator is installed, air inlet is installed in the tower reactor lower end in the tower reactor upper end; In tower reactor, between air cooling heat exchanger and the air inlet gas distributor is installed; The water inlet and the delivery port that are connected with water cooling heat exchanger are installed on tower reactor, the hot synthesis gas outlet and the cold synthesis gas import that are connected with the air cooling heat exchanger from top to bottom are installed on tower reactor, the air inlet that the hot synthesis gas outlet is installed through pipeline and tower reactor lower end is connected.
Above-mentioned water cooling heat exchanger is made up of the tubulation that is installed in two orifice plates in the tower reactor relatively and be installed between two orifice plates; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight heat exchange space; Water inlet and delivery port order from the bottom to top are installed on the tower reactor, and are connected in the heat exchange space.
Above-mentioned air cooling heat exchanger is made up of the tubulation that is installed in two orifice plates in the tower reactor relatively and be installed between two orifice plates; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight gas heat exchange space, hot synthesis gas outlet and cold synthesis gas import are connected with gas heat exchange space.
The above-mentioned gas distributor is an orifice plate, and the cylindrical of orifice plate links to each other with the tower reactor inwall is airtight.
In the tubulation of the gentle cold heat exchanger of above-mentioned water cooling heat exchanger, catalyst is housed.
Above-mentioned separator is spiral gas-liquid-solid separator.
Because the synthesis reactor of the utility model is utilized the heat release in the synthetic reaction process, on the one hand the synthesis gas that gets in the reactor is heated; Make the reaction liberated heat take away a part, utilize water cooling heat exchanger and separator on the other hand, in synthesis reactor, formed rational temperature and distributed and gradient through the synthesis gas that gets into; Catalyst granules is more evenly distributed at reaction bed; Avoided that exit gas is liquid-solid to be carried secretly, improved the selectivity of conversion per pass and the dimethyl ether of CO, prolonged life of catalyst; Reasonably reclaim energy, reduced production cost; The 3rd owing in synthesis gas gets into synthesis reactor, increased the gas distributor of being processed by orifice plate, makes more all usefulness that contacts of the synthesis gas that gets in the synthesis reactor and catalyst like this, improved catalytic effect.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1; The gentle cold heat exchanger of water cooling heat exchanger from top to bottom is installed in tower reactor 1; In the tower reactor upper end separator 13 is installed; Separator can adopt spiral gas-liquid-solid separator, in the tower reactor lower end air inlet 9 is installed, and air inlet also can be used as catalyst removal mouth.
Above-mentioned water cooling heat exchanger is formed by being installed in two orifice plates 4 in the tower reactor 1 and the tubulation 2 that is installed between two orifice plates relatively; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight heat exchange space 3; Water inlet 11 is installed on the tower reactor with delivery port 12 from the bottom to top in proper order, and is connected in the heat exchange space.
Water cooling heat exchanger bottom in tower reactor 1 is equipped with the air cooling heat exchanger; The air cooling heat exchanger is made up of two relative orifice plates and the tubulation that is installed between two orifice plates; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight gas heat exchange space, hot synthesis gas outlet 6 is connected with gas heat exchange space with cold synthesis gas import 8.
In tower reactor, between air inlet 9 and the air cooling heat exchanger gas distributor 10 is installed, gas distributor is an orifice plate, and the cylindrical of orifice plate links to each other with the tower reactor inwall is airtight.
Catalyst 5 is housed in the tubulation of the gentle cold heat exchanger of above-mentioned water cooling heat exchanger.
During use, cold synthesis gas gets into gas heat exchange space through being installed in the cold synthesis gas import 8 of air cooling heat exchanger lower end; Behind the interior synthetic reaction liberated heat of upwards mobile absorption tubulation; Hot synthesis gas outlet 6 by air cooling heat exchanger upper end is flowed out, and gets into the air inlet 9 that install the tower reactor lower end, the gas distributor of being made up of orifice plate then 10 through pipeline; Synthesis gas is uniformly distributed with the back entering is equipped with in the tubulation of catalyst, synthesize reflection.Reacted gas separates the back admittedly with gas-liquid and gets into next workshop section through spiral gas-liquid-solid separator.
Too high for preventing reaction temperature, the air cooling heat exchanger top in tower reactor is equipped with water cooling heat exchanger, but reaction temperature is reduced through water-cooled, the absorption of water cooling heat exchanger simultaneously big quantitative response liberated heat water, can be used as thermal source and use.
As produce 100000 tons of one-step method dimethyl ether synthesis slurry bed reactors per year; Structure of reactor: internal diameter 3.2m; High 20m; Built-in 400 Φ 38 * 2 heat exchangers, 68 tons of inert heat carrier paraffin oils, 34.46 tons of the difunctional fine granularity catalyst that filling industrial methanol synthetic catalyst and methanol dehydration catalyst are formed.At 240 ℃ of temperature, pressure 6.0MPa, air speed 1.0L/gh, H
2Content 65.77%, CO content 32.84%, CO
2Content 1.39%.The conversion ratio 80% of CO, the selectivity of dimethyl ether are 88%, CO
2Selectivity 0.8%, C
2Above selectivity 0.01%.
Comparison example: under identical reaction condition, adopt general bubbling bed reactor, the conversion ratio 75% of CO, the selectivity of dimethyl ether is 85%, CO
2Selectivity 2.3%, C
2Above selectivity 0.03%.
Claims (6)
1. dimethyl ether synthesis reactor; Comprise tower reactor, be installed in the heat exchanger in the tower reactor; It is characterized in that in tower reactor (1), being equipped with the gentle cold heat exchanger of water cooling heat exchanger from top to bottom; In the tower reactor upper end separator (13) is installed; Air inlet (9) is installed in the tower reactor lower end, gas distributor (10) is installed between air cooling heat exchanger and the air inlet in tower reactor, the water inlet (11) and the delivery port (12) that are connected with water cooling heat exchanger are installed on tower reactor; The hot synthesis gas outlet (6) and the cold synthesis gas import (8) that are connected with the air cooling heat exchanger from top to bottom are installed on tower reactor, and the air inlet (9) that hot synthesis gas outlet (6) is installed through pipeline and tower reactor lower end is connected.
2. dimethyl ether synthesis reactor according to claim 1; It is characterized in that forming by the tubulation (2) that is installed in two orifice plates (4) in the tower reactor (1) relatively and be installed between two orifice plates at above-mentioned water cooling heat exchanger; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight heat exchange space (3); Water inlet (11) and delivery port (12) order from the bottom to top are installed on the tower reactor, and are connected in the heat exchange space.
3. dimethyl ether synthesis reactor according to claim 2; It is characterized in that above-mentioned air cooling heat exchanger forms by being installed in two orifice plates in the tower reactor (1) and the tubulation that is installed between two orifice plates relatively; Between two orifice plates, tubulation outer wall and tower reactor inwall form airtight gas heat exchange space, hot synthesis gas outlet (6) and cold synthesis gas import (8) are connected with gas heat exchange space.
4. dimethyl ether synthesis reactor according to claim 3 is characterized in that above-mentioned gas distributor (10) is an orifice plate, the cylindrical of orifice plate and tower reactor (1) airtight linking to each other of inwall.
5. dimethyl ether synthesis reactor according to claim 4 is characterized in that in the tubulation of the gentle cold heat exchanger of above-mentioned water cooling heat exchanger, being equipped with catalyst (5).
6. dimethyl ether synthesis reactor according to claim 5 is characterized in that above-mentioned separator (13) is spiral gas-liquid-solid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203211665U CN202191894U (en) | 2011-08-30 | 2011-08-30 | Dimethyl ether synthesis reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203211665U CN202191894U (en) | 2011-08-30 | 2011-08-30 | Dimethyl ether synthesis reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202191894U true CN202191894U (en) | 2012-04-18 |
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ID=45946826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203211665U Expired - Lifetime CN202191894U (en) | 2011-08-30 | 2011-08-30 | Dimethyl ether synthesis reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202191894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319553A (en) * | 2011-08-30 | 2012-01-18 | 神华宁夏煤业集团有限责任公司 | Dimethyl ether synthesis reactor |
-
2011
- 2011-08-30 CN CN2011203211665U patent/CN202191894U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319553A (en) * | 2011-08-30 | 2012-01-18 | 神华宁夏煤业集团有限责任公司 | Dimethyl ether synthesis reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENHUA GROUP CO., LTD. Free format text: FORMER OWNER: SHENHUA NINGXIA COAL INDUSTRY GROUP CO., LTD . Effective date: 20130402 Owner name: SHENHUA NINGXIA COAL INDUSTRY GROUP CO., LTD . EAS Free format text: FORMER OWNER: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY Effective date: 20130402 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 750002 YINCHUAN, NINGXIA HUI AUTONOMOUS REGION TO: 100011 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130402 Address after: 100011 Beijing, Dongcheng District Anwai Binhe West Road No. 22 Shenhua building Patentee after: Shenhua Group LLC Patentee after: Shenhua Ningxia Coal Industry Group Co., Ltd . Patentee after: East China University of Science and Technology Address before: 750002, No. 168 middle Beijing Road, Jinfeng District, the Ningxia Hui Autonomous Region, Yinchuan Patentee before: Shenhua Ningxia Coal Industry Group Co., Ltd . Patentee before: East China University of Science and Technology |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |