CN206089580U - Shorten ft synthesis reaction system full conversion systems of time of driving - Google Patents
Shorten ft synthesis reaction system full conversion systems of time of driving Download PDFInfo
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- CN206089580U CN206089580U CN201620938500.4U CN201620938500U CN206089580U CN 206089580 U CN206089580 U CN 206089580U CN 201620938500 U CN201620938500 U CN 201620938500U CN 206089580 U CN206089580 U CN 206089580U
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Abstract
The utility model discloses a shorten ft synthesis reaction system full conversion systems of time of driving, it includes former material -gas separator, conversion furnace, feed gas heater, conversion furnace, hydrogen sulfide absorption tower, carbon dioxide absorption tower and ft synthesis reactor in advance. The utility model has the advantages of: 1, to purify some transform and change the total transform into, for the synthetic necessary condition of driving to provide, 2, shortening the driving time, needing to open PSA and hydrogenation compressor before original system drives, full conversion systems synthetic gas directly send the synthesis, and the driving time is by shortening to half a hour more than 3 hours, 3, full conversion systems saves PSA and the hydrogenation time of driving, reduces the synthetic replacement time, 4, full conversion systems driving feed gas does not empty, falls low consumption, reduces environmental cost, improves economic benefits.
Description
Technical field：
The utility model is related to a kind of total transform system, when more particularly to a kind of shortening Fischer-Tropsch synthesis system is driven
Between total transform system.
Background technology：
Fischer-tropsch synthesis process adopts the Fe-series catalyst of Zhong Ke artificial oils Co., Ltd independent research, system after shutdown of short term
Inflated with nitrogen pressurize, drive when require system hydrogen content must reach more than 80%, to prevent reactor in catalyst coking
Reduce its reactivity.In prior art, thick synthesis is produced under halfload using a gasification furnace when shutdown of short term is driven again
Gas about 36000Nm3/ h, wherein H237% or so, the purified change furnace of crude synthesis gas carries out Partial Transformation reaction to content, is changed into
Hydrogen content reaches 60% or so conversion gas, conversion gas Jing sour gas removal unit removing hydrogen sulfide and carbon dioxide, removing
It is referred to as purified gas afterwards, purified gas are obtained about 9000Nm as the unstripped gas of PSA hydrogen manufacturing3The pure hydrogen of/h enters synthesis system and is put
Change, purified gas are drawn again as synthesis material air inlet after system displacement is qualified.
It is to send qualified purified gas supply PSA in clean unit in the past in startup procedure, the normal output of PSA drivings is closed
After lattice hydrogen, synthesis unit is sent in hydrogenated unit make-up hydrogen compressor pressurization carries out system displacement.Due to PSA drive from initially to
The restriction for stably needing certain hour and hydrogen producing amount less, so synthesis system replacement process when every time shutdown of short term is driven again
At least need 3 hours.
When shutdown of short term is driven again, the qualified synthetic raw gas of clean unit output supply PSA (hydrogen manufacturing amount about 9000Nm3/
H), entering synthesis system carries out pure hydrogen displacement, replaces qualified rear system and draws unstripped gas driving again；When which increasing PSA drivings
Between and synthesis system time swap.
Utility model content：
The purpose of this utility model is to provide a kind of total transform system for shortening the Fischer-Tropsch synthesis system driving time.
The purpose of this utility model is implemented by following technical scheme：A kind of Fischer-Tropsch synthesis system that shortens is driven the time
Total transform system, it includes feed gas separator, pre-transform stove, raw material hot-air heater, change furnace, hydrogen sulfide absorption tower, dioxy
Change carbon absorption tower and Fischer-Tropsch synthesis device, the unstripped gas of the feed gas separator exports the with the raw material hot-air heater
One air inlet connects, and the first gas outlet of the raw material hot-air heater is connected with the air inlet of the pre-transform stove, the pre- change
The gas outlet for changing stove is connected with the air inlet of the change furnace, the gas outlet of the change furnace and the of the raw material hot-air heater
Two air inlets are connected by the first pipeline, and the gas outlet of the pre-transform stove is connected with first pipeline by the second pipeline,
Second pipeline is provided with control valve, the second gas outlet of the raw material hot-air heater and entering for the hydrogen sulfide absorption tower
Gas port connects, and the gas outlet of the hydrogen sulfide absorption tower is connected with the air inlet of the carbon dioxide absorption tower, the titanium dioxide
The gas outlet of carbon absorption tower is connected with the air inlet of the Fischer-Tropsch synthesis device.
The utility model has the advantage of：1st, purification Partial Transformation is changed to into total transform, drives to provide necessary bar for synthesis
Part；2nd, the driving time is shortened, original system needs out PSA and hydrogenation compressor, total transform system synthesis gas directly to send before driving
Synthesis, the driving time shorten to half an hour by more than 3 hours；3rd, total transform system saves PSA and hydrogenation driving time, reduces and closes
Into time swap；4th, total transform system driving unstripped gas is not vented, and reduces consuming, reduces Environmental costs, increases economic efficiency.
Description of the drawings：
Fig. 1 is a kind of total transform system schematic of shortening Fischer-Tropsch synthesis system driving time.
Feed gas separator 1, pre-transform stove 2, raw material hot-air heater 3, change furnace 4, Fischer-Tropsch synthesis device 5, first pipe
Road 6, the second pipeline 7, control valve 8, hydrogen sulfide absorption tower 9, carbon dioxide absorption tower 10.
Specific embodiment：
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
As shown in figure 1, a kind of total transform system for shortening the Fischer-Tropsch synthesis system driving time, it includes unstripped gas point
Close from device 1, pre-transform stove 2, raw material hot-air heater 3, change furnace 4, hydrogen sulfide absorption tower 9, carbon dioxide absorption tower 10 and Fischer-Tropsch
Into reactor 5, the unstripped gas outlet of feed gas separator 1 is connected with the first air inlet of raw material hot-air heater 3, unstripped gas heating
First gas outlet of device 3 is connected with the air inlet of pre-transform stove 2, and the gas outlet of pre-transform stove 2 connects with the air inlet of change furnace 4
Connect, the gas outlet of change furnace 4 is connected with the second air inlet of raw material hot-air heater 3 by the first pipeline 6, pre-transform stove 2 goes out
Gas port is connected with the first pipeline 6 by the second pipeline 7, and the second pipeline 7 is provided with control valve 8, and the second of raw material hot-air heater 3
Gas outlet is connected with the air inlet of hydrogen sulfide absorption tower 9, the gas outlet of hydrogen sulfide absorption tower 9 and entering for carbon dioxide absorption tower 10
Gas port connects, and the gas outlet of carbon dioxide absorption tower 10 is connected with the air inlet of Fischer-Tropsch synthesis device 5.
Crude synthesis gas about 36000Nm is produced under halfload using a gasification furnace when shutdown of short term is driven again3/ h, wherein
H237% or so, the purified change furnace 4 of crude synthesis gas carries out total transform reaction to content, and control valve 8 is fully closed, unstripped gas whole
By change furnace 4, hydrogen content, up to more than 85%, enters back into the hydrogen sulfide absorption that low-temp methanol washes workshop section in gas after reaction
Tower 9 removes hydrogen sulfide, and after removing hydrogen sulfide the carbon dioxide removal of carbon dioxide absorption tower 10 is entered, and removes H2S and CO2Afterwards net
Change pneumatic transmission to Fischer-Tropsch synthesis device 5, synthesis system connects the driving of gas rear substitution, and it is little that the driving time shorten to half by more than 3 hours
When.
It is more than preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection domain of the present utility model.
Claims (1)
1. a kind of Fischer-Tropsch synthesis system of shortening is driven the total transform system of time, it is characterised in that it includes unstripped gas point
From device, pre-transform stove, raw material hot-air heater, change furnace, hydrogen sulfide absorption tower, carbon dioxide absorption tower and Fischer-Tropsch synthesis
Device, the unstripped gas outlet of the feed gas separator is connected with the first air inlet of the raw material hot-air heater, the unstripped gas
First gas outlet of heater is connected with the air inlet of the pre-transform stove, gas outlet and the change furnace of the pre-transform stove
Air inlet connection, the second air inlet of the gas outlet of the change furnace and the raw material hot-air heater is by the first pipeline company
Connect, the gas outlet of the pre-transform stove is connected with first pipeline by the second pipeline, second pipeline is provided with regulation
Valve, the second gas outlet of the raw material hot-air heater is connected with the air inlet of the hydrogen sulfide absorption tower, and the hydrogen sulfide is inhaled
Receive tower gas outlet be connected with the air inlet of the carbon dioxide absorption tower, the gas outlet of the carbon dioxide absorption tower with it is described
The air inlet connection of Fischer-Tropsch synthesis device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938500.4U CN206089580U (en) | 2016-08-24 | 2016-08-24 | Shorten ft synthesis reaction system full conversion systems of time of driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938500.4U CN206089580U (en) | 2016-08-24 | 2016-08-24 | Shorten ft synthesis reaction system full conversion systems of time of driving |
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| CN206089580U true CN206089580U (en) | 2017-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902653A (en) * | 2019-12-28 | 2020-03-24 | 上海华林工业气体有限公司 | Method for switching raw material crude CO into synthesis gas by synthesis gas separation device without stopping |
-
2016
- 2016-08-24 CN CN201620938500.4U patent/CN206089580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902653A (en) * | 2019-12-28 | 2020-03-24 | 上海华林工业气体有限公司 | Method for switching raw material crude CO into synthesis gas by synthesis gas separation device without stopping |
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