CN109052318A - Isothermal shift-converter - Google Patents
Isothermal shift-converter Download PDFInfo
- Publication number
- CN109052318A CN109052318A CN201811160882.2A CN201811160882A CN109052318A CN 109052318 A CN109052318 A CN 109052318A CN 201811160882 A CN201811160882 A CN 201811160882A CN 109052318 A CN109052318 A CN 109052318A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exchanger tube
- furnace body
- collecting pipe
- catalyst frame
- 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.)
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Classifications
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- 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
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
- C01B3/16—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0285—Heating or cooling the reactor
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present invention relates to a kind of isothermal shift-converters, including furnace body and setting in the intracorporal catalyst frame of furnace, the middle part of catalyst frame is equipped with conversion gas collecting pipe, and the Single port of conversion gas collecting pipe is closed, another port connects out-of-bounds, and multiple air inlets are equipped at intervals on the side wall of conversion gas collecting pipe；The wall of catalyst frame is equipped with the through-hole in connection catalyst in-out-snap space；More heat exchanger tubes are equipped in cavity between catalyst frame and conversion gas collecting pipe；It is characterized in that each heat exchanger tube is divided into multiple set of heat exchange tubes, each set of heat exchange tubes includes the second heat exchanger tube of the first heat exchanger tube and Duo Gen；Each second heat exchanger tube is arranged in around the first heat exchanger tube；The lower port of first heat exchanger tube connects cooling water pipeline, and the lower port of the second heat exchanger tube connects steam collection pipe road；Cavity between the lower port connection catalyst frame and furnace body of first the second heat exchanger tube of heat exchanger tube；The upper port of first heat exchanger tube and the second heat exchanger tube is connected to the inner cavity of pipe cap, and pipe cap is closed cavity body structure.
Description
Technical field
The present invention relates to chemical industry equipment more particularly to a kind of isothermal shift-converters.
Background technique
CO conversion reactionIt is an exothermic reaction, the conversion gas temperature of fully reacting is up to 450
DEG C or so, but the energy barrier (reactivity energy) of its reaction is higher, needs for reaction raw materials to be heated to reaction temperature before reactions
Degree.There are many existing unstripped gas heating means, since the medium ingredients in change furnace are different, when water-gas ratio is too low, can make
It is risen rapidly at temperature, when heat withdraws phenomena such as just will appear temperature runaway (reaction zone steeply rises in equipment) not in time.Equipment
After interior temperature is excessively high, it is also possible to cause methanation reaction, when this occurs, temperature in equipment up to 600 DEG C~
800 DEG C, catalyst can be made to lose activity because temperature is excessively high when such operating condition occurs, need replacing catalyst, cause great economy
Loss.Moreover, also equipment intensity can be made sharply to decline when equipment wall temperature is excessively high, be brought to the production of whole device huge
Security risk.
Summary of the invention
The technical problem to be solved by the present invention is to the statuses for the prior art to provide a kind of accurate isothermal change of temperature control
Change reactor.
The technical scheme of the invention to solve the technical problem is: the isothermal shift-converter, including furnace body and
Setting is equipped with conversion gas collecting pipe at the intracorporal catalyst frame of furnace, the middle part of the catalyst frame；The catalyst frame with it is described
There is the feed gas passage of connection furnace body inner cavity between the side wall of furnace body, be equipped at intervals with multiple connection institutes on the side wall of catalyst frame
State the through-hole of feed gas passage and catalyst frame inner cavity；The Single port of the conversion gas collecting pipe is closed, and another port connects boundary
Outside, it is equipped at intervals between catalyst frame described in multiple air inlets and the conversion gas collecting pipe and urges on the side wall of conversion gas collecting pipe
Agent bed is equipped with more heat exchanger tubes；
The top of the furnace body is equipped with unstripped gas entrance, and the unstripped gas entrance is connected to the inner cavity of the furnace body；
It is characterized in that each heat exchanger tube is divided into multiple set of heat exchange tubes, each set of heat exchange tubes includes the first heat exchanger tube and more
The second heat exchanger tube of root；Each second heat exchanger tube is arranged in around first heat exchanger tube；
The lower port of first heat exchanger tube connects cooling water pipeline, and the lower port connection steam of second heat exchanger tube is received
Collect pipeline；The lower port of second heat exchanger tube described in first heat exchanger tube is connected to the sky between the catalyst frame and the furnace body
Chamber；
First heat exchanger tube is connected to the inner cavity of pipe cap with the upper port of second heat exchanger tube, and the pipe cap is closed
Cavity body structure.
It is preferred that the quantity of the second heat exchanger tube described in each set of heat exchange tubes is 3~8, and in first heat exchanger tube
Surrounding is evenly arranged.
Preferably, the quantity of second heat exchanger tube is 6.
As the further improvement of above-mentioned each scheme, the caliber of second heat exchanger tube is less than the pipe of first heat exchanger tube
Diameter.First heat exchanger tube is cooling water pipe, and the second heat exchanger tube is main heat exchanger tube, and the sum of all second heat exchange tube sections should be greater than first
Heat exchanger tube sectional area, advantageously reduces steam resistance in this way, and more the second heat exchanger tubes can increase heat exchange surface area.
For the mounting structure for consolidating the first heat exchanger tube and the second heat exchanger tube, in each set of heat exchange tubes, adjacent described the
The first connecting rib is connected between two heat exchanger tubes；The second connection is equipped between first heat exchanger tube and second heat exchanger tube
Gusset, the both ends of each second connecting rib are separately connected the outer wall and corresponding first connecting rib of first heat exchanger tube.
It is preferred that each first connecting rib in each set of heat exchange tubes is arranged along same circumference.
To make cooling water energy evenly into each first heat exchanger tube, to catalyst bed uniform heat extraction, each described first is changed
The lower port of heat pipe is all connected with into water endless tube, and the entrance of the water inlet endless tube connects the cooling water pipeline；
Lower port connection steam for the steam for swimmingly collecting generation, each second heat exchanger tube collects endless tube, described
The outlet that steam collects endless tube connects the steam collection pipe road.
Preferably, the top of each furnace body is equipped with unstripped gas entrance, the unstripped gas entrance connection gas distributor
Entrance, the inner cavity of furnace body described in the outlet of the gas distributor.
Preferably, for convenience of overhauling, the conversion gas collecting pipe can be successively detachably connected by multistage cylinder, institute
It states and is in axial direction successively equipped at intervals with multiple foot of ladders on the inner sidewall of cylinder.
Compared with prior art, equal temperature shift reactions device provided by the present invention is designed heat exchanger tube by group, in each group
The second heat exchanger tube be evenly arranged on around the first heat exchanger tube, the unstripped gas residence time is long, enters in catalyst bed and secondary changes
Heat, catalyst bed cooling is abundant, to accurately control the reaction temperature of catalyst bed, and unstripped gas preheating is sufficiently, guarantees
The stable operation of device and reaction effect.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of the embodiment of the present invention；
Fig. 2 is the transverse sectional view of the embodiment of the present invention；
Fig. 3 is the longitudinal sectional view of set of heat exchange tubes in the embodiment of the present invention；
Fig. 4 is the A direction view of Fig. 3；
Fig. 5 is the cross-sectional view of the B-B along Fig. 3.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figures 1 to 5, which includes:
Furnace body 1 is conventional structure, including upper cover 11, lower head 12 and is connected between upper cover 11 and lower head 12
Cylinder 13；Upper cover 11 is equipped with unstripped gas entrance 14, and lower head 12 is equipped with syngas outlet 15, upper cover and lower head
On be equipped with manhole 16.
Gas distributor 7 is additionally provided in upper cover 11, the entrance of gas distributor 7 connects unstripped gas entrance 14, gas point
The cavity of the outlet upper cover of cloth device.
Catalyst frame 2 is used for loading catalyst, is arranged in cylinder 13.It is existing that catalyst frame 2 can according to need selection
Any one in technology, the present embodiment is radial reactor, between having between the side wall of catalyst frame and the inner sidewall of furnace body
Gap, the gap are feed gas passage 17；Feed gas passage 17 is connected to upper cover cavity, and the side wall of catalyst frame is equipped with multiple logical
Hole (not shown), unstripped gas after preheating is from each through-hole on 2 side wall of catalyst frame radially into in catalyst frame
Catalyst bed.
Conversion gas collecting pipe 3 sends out furnace body 1, setting by synthesis gas pipeline 33 for collecting synthesis gas, and by synthesis gas
Medium position in 2 cavity of catalyst frame, is successively detachably connected by multistage cylinder 31, each cylinder 31 in the present embodiment
Between connected by flange 34；Multiple air inlet (not shown)s, the inside of cylinder 31 are equipped at intervals on the side wall of cylinder 31
Multiple foot of ladders 32 are in axial direction successively equipped at intervals on wall.End cap is detachably connected in the upper port of conversion gas collecting pipe 3,
The lower port of conversion gas collecting pipe 3 connects syngas outlet 15, and syngas outlet 15 connects synthesis gas pipeline 33, passes through synthesis gas
The synthesis pneumatic transmission that pipeline 33 generates reaction is to out-of-bounds.
Heat exchanger tube has multiple groups, is arranged in the space between catalyst frame 2 and conversion gas collecting pipe 3, each set of heat exchange tubes 4
It is evenly arranged in space between catalyst frame 2 and conversion gas collecting pipe 3.Every group of set of heat exchange tubes 4 include:
Piece first heat exchanger tube 41 and the second heat exchanger tube of Duo Gen 42；Each second heat exchanger tube 42 is arranged in described first and changes
Around heat pipe 41；The second heat exchanger tube of the six roots of sensation 42, the second heat exchange are disposed in the present embodiment around every first heat exchanger tube 41
Caliber 41 of the caliber of pipe 42 less than the first heat exchanger tube.Each second heat exchanger tube 42 is evenly arranged on the same circumference outside the first heat exchanger tube 41
On line.
The equal steam of the lower port of each first heat exchanger tube 41 collects endless tube 54, and the outlet connection steam that steam collects endless tube 54 is received
Collect pipeline 52, the quality steam generated after heat exchange is sent out by furnace body by steam collection pipe road 52.
The upper end of first heat exchanger tube 41 and second heat exchanger tube 42 is each attached on the cover board 46 of pipe cap 45, pipe
Cap 6 is closed cavity body structure, and the first heat exchanger tube 41 is connected to the inner cavity of pipe cap 45 with the upper port of second heat exchanger tube 42.
In each set of heat exchange tubes: being connected with the first connecting rib 43 between adjacent second heat exchanger tube 42；It is changed described in each
Each first connecting rib 43 in heat pipe heat is arranged along same circumference.First heat exchanger tube 41 and second heat exchange
The second connecting rib 44 is equipped between pipe 42, the both ends of each second connecting rib 44 are separately connected the outer wall of first heat exchanger tube
With corresponding first connecting rib 43.
Second connecting rib 44 and the first connecting rib 43 can be plate structure, can also the above rodlike or tubular structure.
It is same as the prior art that remaining is not directed to content.
When device is run, unstripped gas enters in furnace body from unstripped gas entrance via gas distributor, via gas distributor
After evenly dispersed, into furnace body cavity, entered in catalyst bed from feed gas passage via each through-hole, in catalyst bed
Interior carry out conversion reaction.Heat is released in conversion reaction.
Boiler water, that is, cooling water enters cooling water endless tube from cooling water pipeline, cold then even into each first heat exchanger tube
But water flows from bottom to top, exchanges heat with the reaction heat of catalyst bed, then sequentially enters the inner cavity of pipe cap, each second changes
Heat pipe continues to exchange heat with the reaction heat of catalyst bed, heats steam；The quality steam of generation enters steam and collects endless tube, from
Steam conveying pipe is sent out out-of-bounds.
Unstripped gas generates heat after catalyst bed reaction, while taking away the reaction heat of catalyst bed, makes catalyst
The temperature of bed is constant in catalyst activity temperature；The synthesis gas that reaction generates enters conversion gas collecting pipe from each air inlet, passes through
It is sent by synthesis gas pipeline to out-of-bounds.
Claims (9)
1. isothermal shift-converter, including furnace body (1) and the catalyst frame (2) being arranged in furnace body (1), the catalyst frame
(2) middle part is equipped with conversion gas collecting pipe (3)；There is connection furnace body inner cavity between the catalyst frame and the side wall of the furnace body
Feed gas passage, the logical of multiple connections feed gas passage and catalyst frame inner cavity is equipped at intervals on the side wall of catalyst frame
Hole；The Single port of the conversion gas collecting pipe (3) is closed, and another port connects out-of-bounds, on the side wall of conversion gas collecting pipe (3) between
Every being equipped with described in multiple air inlets, catalyst bed is equipped with more between catalyst frame (2) and the conversion gas collecting pipe (3)
Heat exchanger tube；
The top of the furnace body (1) is equipped with unstripped gas entrance (14), and the unstripped gas entrance is connected to the inner cavity of the furnace body；
It is characterized in that each heat exchanger tube is divided into multiple set of heat exchange tubes (4), each set of heat exchange tubes (4) includes the first heat exchanger tube
(41) and more second heat exchanger tubes (42)；Each second heat exchanger tube (42) is arranged in around first heat exchanger tube (41)；
The lower port of first heat exchanger tube (41) connects cooling water pipeline (51), the lower port connection of second heat exchanger tube 42
Steam collection pipe road (52)；
First heat exchanger tube (41) is connected to the inner cavity of pipe cap (45), the pipe with the upper port of second heat exchanger tube (42)
Cap (45) is closed cavity body structure.
2. isothermal shift-converter according to claim 1, it is characterised in that second described in each set of heat exchange tubes (4)
The quantity of heat exchanger tube (42) is 3~8, and is evenly arranged around first heat exchanger tube (41).
3. isothermal shift-converter according to claim 2, it is characterised in that the quantity of second heat exchanger tube (42) is 6
Root.
4. according to claim 1 to isothermal shift-converter described in 3 any claims, it is characterised in that second heat exchange
The caliber for managing (42) is less than the caliber of first heat exchanger tube (41).
5. isothermal shift-converter according to claim 4, it is characterised in that in each set of heat exchange tubes, adjacent is described
The first connecting rib (43) are connected between second heat exchanger tube (42)；First heat exchanger tube (41) and second heat exchanger tube
(42) the second connecting rib (44) are equipped between, the both ends of each second connecting rib (44) are separately connected first heat exchanger tube
Outer wall and corresponding first connecting rib (43).
6. isothermal shift-converter according to claim 5, it is characterised in that each described in each set of heat exchange tubes
One connecting rib (43) is arranged along same circumference.
7. isothermal shift-converter according to claim 1, it is characterised in that the lower end of each first heat exchanger tube (41)
Mouth is all connected with into water endless tube (53), and the entrance of water inlet endless tube (53) connects the cooling water pipeline (51)；
The lower port connection steam of each second heat exchanger tube (42) collects endless tube (54), and the steam collects going out for endless tube (54)
Mouth connects the steam collection pipe road (52).
8. isothermal shift-converter according to claim 7, it is characterised in that the unstripped gas entrance connection gas distribution
The entrance of device (7), the inner cavity of furnace body described in the outlet of the gas distributor (7).
9. isothermal shift-converter according to claim 8, it is characterised in that the conversion gas collecting pipe (3) is by multistage cylinder
Body (31) is successively detachably connected, and is in axial direction successively equipped at intervals with multiple foot of ladders on the inner sidewall of the cylinder (31)
(32)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160882.2A CN109052318B (en) | 2018-09-30 | 2018-09-30 | Isothermal shift reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160882.2A CN109052318B (en) | 2018-09-30 | 2018-09-30 | Isothermal shift reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109052318A true CN109052318A (en) | 2018-12-21 |
| CN109052318B CN109052318B (en) | 2022-04-08 |
Family
ID=64767453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160882.2A Active CN109052318B (en) | 2018-09-30 | 2018-09-30 | Isothermal shift reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109052318B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876913A (en) * | 2019-11-05 | 2020-03-13 | 中国石油化工股份有限公司 | Radial bed isothermal transformation reaction device |
| CN110898768A (en) * | 2019-10-24 | 2020-03-24 | 中石化宁波工程有限公司 | Double-isothermal-system conversion furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732918A (en) * | 1984-04-18 | 1988-03-22 | Linde Aktiengesellschaft | Heat interchanging process and reactor therefor |
| CN104368279A (en) * | 2014-11-18 | 2015-02-25 | 安徽新月化工设备有限公司 | Radial constant-temperature reactor by using water to transfer heat |
| CN104399413A (en) * | 2014-11-18 | 2015-03-11 | 安徽新月化工设备有限公司 | Controllable heat-removing reactor |
| CN104645897A (en) * | 2015-02-11 | 2015-05-27 | 南京敦先化工科技有限公司 | Dual-seal-head controllable water heat removing reactor |
| CN106861590A (en) * | 2017-02-20 | 2017-06-20 | 北京石油化工工程有限公司 | Aromatic hydrocarbons conversion reactor |
| CN206508988U (en) * | 2017-02-20 | 2017-09-22 | 北京石油化工工程有限公司 | Aromatic hydrocarbons conversion reactor |
| CN108325476A (en) * | 2018-02-08 | 2018-07-27 | 湖南安淳高新技术有限公司 | A kind of suspension type U-shaped vapour pipe isothermal reactor and reaction method |
-
2018
- 2018-09-30 CN CN201811160882.2A patent/CN109052318B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732918A (en) * | 1984-04-18 | 1988-03-22 | Linde Aktiengesellschaft | Heat interchanging process and reactor therefor |
| CN104368279A (en) * | 2014-11-18 | 2015-02-25 | 安徽新月化工设备有限公司 | Radial constant-temperature reactor by using water to transfer heat |
| CN104399413A (en) * | 2014-11-18 | 2015-03-11 | 安徽新月化工设备有限公司 | Controllable heat-removing reactor |
| CN104645897A (en) * | 2015-02-11 | 2015-05-27 | 南京敦先化工科技有限公司 | Dual-seal-head controllable water heat removing reactor |
| CN106861590A (en) * | 2017-02-20 | 2017-06-20 | 北京石油化工工程有限公司 | Aromatic hydrocarbons conversion reactor |
| CN206508988U (en) * | 2017-02-20 | 2017-09-22 | 北京石油化工工程有限公司 | Aromatic hydrocarbons conversion reactor |
| CN108325476A (en) * | 2018-02-08 | 2018-07-27 | 湖南安淳高新技术有限公司 | A kind of suspension type U-shaped vapour pipe isothermal reactor and reaction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898768A (en) * | 2019-10-24 | 2020-03-24 | 中石化宁波工程有限公司 | Double-isothermal-system conversion furnace |
| CN110876913A (en) * | 2019-11-05 | 2020-03-13 | 中国石油化工股份有限公司 | Radial bed isothermal transformation reaction device |
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| Publication number | Publication date |
|---|---|
| CN109052318B (en) | 2022-04-08 |
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