CN104296499A - Double-turbine boosting expansion machine propane dehydrogenation cold box separation system and technique - Google Patents
Double-turbine boosting expansion machine propane dehydrogenation cold box separation system and technique Download PDFInfo
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- CN104296499A CN104296499A CN201410559377.0A CN201410559377A CN104296499A CN 104296499 A CN104296499 A CN 104296499A CN 201410559377 A CN201410559377 A CN 201410559377A CN 104296499 A CN104296499 A CN 104296499A
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- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/0605—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the feed stream
- F25J3/062—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/063—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream
- F25J3/0645—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of CnHm with 3 carbon atoms or more
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/063—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream
- F25J3/0655—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/12—Refinery or petrochemical off-gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/62—Liquefied natural gas [LNG]; Natural gas liquids [NGL]; Liquefied petroleum gas [LPG]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/24—Multiple compressors or compressor stages in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/30—Compression of the feed stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/04—Internal refrigeration with work-producing gas expansion loop
- F25J2270/06—Internal refrigeration with work-producing gas expansion loop with multiple gas expansion loops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
- F25J2270/904—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by liquid or gaseous cryogen in an open loop
Abstract
The invention discloses a double-turbine boosting expansion machine propane dehydrogenation cold box separation system and technique. After being connected in parallel, a low-pressure expansion machine and a high-pressure expansion machine are connected with an inlet of a high-temperature separator via a third cold-mixing feeding heat exchanger. A gas outlet of the high-temperature separator is connected with an inlet of a medium-temperature separator via a second expansion heat exchanger, a liquid outlet of a high-temperature separator, a flash tank, a liquid pump and a second feeding quencher are connected sequentially, a liquid outlet of the medium-temperature separator is connected with an inlet of the flash tank, a gas outlet of the medium-temperature separator, a first expansion heat exchanger and an inlet of the high-pressure expansion machine are connected, an outlet of the high-pressure expansion machine is connected with the first expansion heat exchanger to be divided into two ways, one way is connected with a first feeding quencher via the first cold mixing feeding heat exchanger while the other way is connected with the inlet of the low-pressure expansion machine, and the outlet of the low-pressure expansion machine, the first expansion heat exchanger and the second cold-fixing feeding heat exchanger are connected. The system is reliable in equipment, high in safety, low in cost and high in recovery rate of reactor effluent.
Description
Technical field
The present invention relates to dehydrogenating propane ice chest piece-rate system and technique thereof, particularly relate to a kind of two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system and technique thereof.
Background technology
Propylene is important petrochemical materials, except synthesis polypropylene, propylene can also make numerous downstream product such as acrylonitrile, isopropyl alcohol, phenol and acetone, acrylic acid and lipid thereof, just progressively replace traditional product as timber, iron and steel, cotton and cotton products etc., occupy an important position in national economy.Long-rangely seeing, supplying delaying world market the situation put upon the full stretch.
Current ice chest separating technology is the technique that the Oleflex technique of Uop Inc. adopts, the method of cryogenic separation is adopted to be expanded to after reactor effluent cooling liquid by the decompressor tandem of two generator brakes, gas-liquid separation forms, reactor effluent is made to be separated into the pure qi (oxygen) product stream of Fu Qing and the liquid product stream of rich hydrocarbon, also mixed as circulating air with fresh propane charging by a part of hydrogen rich gas, the mixed feeding as reactor is sent simultaneously.This kind of technique exist the C3 rate of recovery be not very high, expander inlet has band liquid risk, gas-liquid separation difficulty is comparatively large, equipment dependability is poor and invest the shortcomings such as large.Present people thirst for a kind of new ice chest piece-rate system and technique is not enough to make up these.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system and technique thereof.
The technical solution adopted for the present invention to solve the technical problems is:
Two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system comprises low-pressure expansion machine, high pressure expansion machine, the first cold mixed feeding heat exchanger, the second cold mixed feeding heat exchanger, the 3rd cold mixed feeding heat exchanger, the first swelling heat exchanger, high-temperature separator, the second swelling heat exchanger, middle temperature separator, flash tank, liquor pump, the first charging quencher, the second charging quencher, low-pressure expansion machine, after high pressure expansion machine parallel connection, be connected with the import of high-temperature separator through the 3rd cold mixed feeding heat exchanger, the gas vent of high-temperature separator is connected through the import of the second swelling heat exchanger with middle temperature separator, the liquid outlet of high-temperature separator, flash tank, liquor pump, second charging quencher connects in turn, the liquid outlet of middle temperature separator is connected with flash tank import, the gas vent of middle temperature separator, first swelling heat exchanger, high pressure expansion machine import connects in turn, two-way is divided into after high pressure expansion machine outlet is connected with the first swelling heat exchanger, wherein a cold mixed feeding heat exchanger in road first is connected with the first charging quencher, another road is connected with low-pressure expansion machine import, low-pressure expansion machine exports, first swelling heat exchanger, second cold mixed feeding heat exchanger connects in turn.
Two turbine booster expansion machine dehydrogenating propane ice chest separating technology is: the supercharger that first reactor effluent divides two-way to drive via low-pressure expansion machine and high pressure expansion machine is pressurized to 1347 ~ 1436KPa, converge after supercharging and cool laggard 3rd cold mixed feeding heat exchanger cooling, high-temperature separator is separated, its isolated gas is excessively cold through the second swelling heat exchanger, middle temperature separator is separated, the liquid joint that liquid after separation is separated with previous high-temperature separator, enter flash tank, pressurize through liquor pump, finally in the second charging quencher, send user after rewarming, through in warm separator be separated after gas then through the first swelling heat exchanger rewarming, enter high pressure expansion machine to expand, return the first swelling heat exchanger rewarming again, gas after rewarming one enter the first cold mixed feeding heat exchanger and the first charging quencher successively, be used for balancing the temperature difference of these two heat exchangers, send as pure qi (oxygen) after being able to rewarming simultaneously, after another strand of gas enters low-pressure expansion machine expansion again, return the first swelling heat exchanger rewarming, mix with fresh propane feeding gas again, user is sent into after the second cold mixed feeding heat exchanger rewarming to normal temperature.
Described reactor effluent is the mixture of propylene, propane and hydrogen.
The invention has the beneficial effects as follows, adopt the separating at high temperature technology of autonomous Design, make the inlet temperature of separating at high temperature tank more much lower than UOP normal process, thus improve propane, the propylene recovery rate of device.Compare UOP normal process mutually, the liquid gas volume ratio of separator import in patent flow process obviously increases an order of magnitude, thus greatly reduces the design difficulty of separator.Patent flow process adopts the gas phase after-122 DEG C of degree of depth separation of C 3 a little after rewarming, enters high and low pressure expander.Make high and low pressure expander inlet all have certain degree of superheat like this, stopped the risk of expander inlet band liquid completely, ensure the safety of equipment and personnel.Patent flow process adopts current supercharger braking decompressor, and be the pressuring expansion unit adopting same rotor to be connected, reliability is high.The decompressor of traditional generator brake must configure gearbox speed reduction, and then plug-in generating set, and compared with booster expansion turbine group, existing cost is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system;
In figure, low-pressure expansion machine 1, the cold mixed feeding heat exchanger 4 of high pressure expansion machine the 2, first cold mixed feeding heat exchanger 3, second, the 3rd cold mixed feeding heat exchanger 5, first swelling heat exchanger 6, high-temperature separator 7, second swelling heat exchanger 8, middle temperature separator 9, flash tank 10, liquor pump 11, first charging quencher 12, second charging quencher 13.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with accompanying drawing:
As shown in Figure 1, two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system comprises low-pressure expansion machine 1, the cold mixed feeding heat exchanger 4 of high pressure expansion machine the 2, first cold mixed feeding heat exchanger 3, second, the 3rd cold mixed feeding heat exchanger 5, first swelling heat exchanger 6, high-temperature separator 7, second swelling heat exchanger 8, middle temperature separator 9, flash tank 10, liquor pump 11, first charging quencher 12, second charging quencher 13, low-pressure expansion machine 1, after high pressure expansion machine 2 parallel connection, be connected with the import of high-temperature separator 7 through the 3rd cold mixed feeding heat exchanger 5, the gas vent of high-temperature separator 7 is connected through the import of the second swelling heat exchanger 8 with middle temperature separator 9, the liquid outlet of high-temperature separator 7, flash tank 10, liquor pump 11, second charging quencher 13 connects in turn, the liquid outlet of middle temperature separator 9 is connected with flash tank 10 import, the gas vent of middle temperature separator 9, first swelling heat exchanger 6, high pressure expansion machine 2 import connects in turn, two-way is divided into after high pressure expansion machine 2 outlet is connected with the first swelling heat exchanger 6, wherein a cold mixed feeding heat exchanger 3 in road first is connected with the first charging quencher 12, another road is connected with low-pressure expansion machine 1 import, low-pressure expansion machine 1 exports, first swelling heat exchanger 6, second cold mixed feeding heat exchanger 4 connects in turn.
Two turbine booster expansion machine dehydrogenating propane ice chest separating technology is: the supercharger that first reactor effluent divides two-way to drive via low-pressure expansion machine 1 and high pressure expansion machine 2 is pressurized to 1347 ~ 1436KPa, converge after supercharging and cool laggard 3rd cold mixed feeding heat exchanger 5 and cool, high-temperature separator 7 is separated, its isolated gas is excessively cold through the second swelling heat exchanger 8, middle temperature separator 9 is separated, the liquid joint that liquid after separation is separated with previous high-temperature separator 7, enter flash tank 10, pressurize through liquor pump 11, finally in the second charging quencher 13, send user after rewarming, through in warm separator 9 be separated after gas then through the first swelling heat exchanger 6 rewarming, enter high pressure expansion machine 2 to expand, return the first swelling heat exchanger 6 rewarming again, gas after rewarming one enter the first cold mixed feeding heat exchanger 3 and the first charging quencher 12 successively, be used for balancing the temperature difference of these two heat exchangers, send as pure qi (oxygen) after being able to rewarming simultaneously, after another strand of gas enters low-pressure expansion machine 1 expansion again, return the first swelling heat exchanger 6 rewarming, mix with fresh propane feeding gas again, user is sent into after the second cold mixed feeding heat exchanger 4 rewarming to normal temperature.
Described reactor effluent is the mixture of propylene, propane and hydrogen.
Claims (3)
1. a two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system, is characterized in that comprising low-pressure expansion machine (1), high pressure expansion machine (2), the first cold mixed feeding heat exchanger (3), the second cold mixed feeding heat exchanger (4), the 3rd cold mixed feeding heat exchanger (5), the first swelling heat exchanger (6), high-temperature separator (7), the second swelling heat exchanger (8), middle temperature separator (9), flash tank (10), liquor pump (11), the first charging quencher (12), the second charging quencher (13), low-pressure expansion machine (1), after high pressure expansion machine (2) parallel connection, be connected with the import of high-temperature separator (7) through the 3rd cold mixed feeding heat exchanger (5), the gas vent of high-temperature separator (7) is connected through the import of the second swelling heat exchanger (8) with middle temperature separator (9), the liquid outlet of high-temperature separator (7), flash tank (10), liquor pump (11), second charging quencher (13) connects in turn, the liquid outlet of middle temperature separator (9) is connected with flash tank (10) import, the gas vent of middle temperature separator (9), first swelling heat exchanger (6), high pressure expansion machine (2) import connects in turn, two-way is divided into after high pressure expansion machine (2) outlet is connected with the first swelling heat exchanger (6), wherein a cold mixed feeding heat exchanger (3) in road first is connected with the first charging quencher (12), another road is connected with low-pressure expansion machine (1) import, low-pressure expansion machine (1) exports, first swelling heat exchanger (6), second cold mixed feeding heat exchanger (4) connects in turn.
2. one kind uses two turbine booster expansion machine dehydrogenating propane ice chest separating technologies of system as claimed in claim 1, it is characterized in that the supercharger that first reactor effluent divides two-way to drive via low-pressure expansion machine (1) and high pressure expansion machine (2) is pressurized to 1347 ~ 1436KPa, converge after supercharging and cool laggard 3rd cold mixed feeding heat exchanger (5) cooling, high-temperature separator (7) is separated, its isolated gas is excessively cold through the second swelling heat exchanger (8), middle temperature separator (9) is separated, the liquid joint that liquid after separation is separated with previous high-temperature separator (7), enter flash tank (10), pressurize through liquor pump (11), finally in the second charging quencher (13), send user after rewarming, through in warm separator (9) be separated after gas then through the first swelling heat exchanger (6) rewarming, enter high pressure expansion machine (2) to expand, return the first swelling heat exchanger (6) rewarming again, gas after rewarming one enter the first cold mixed feeding heat exchanger (3) and the first charging quencher (12) successively, be used for balancing the temperature difference of these two heat exchangers, send as pure qi (oxygen) after being able to rewarming simultaneously, after another strand of gas enters low-pressure expansion machine (1) expansion again, return the first swelling heat exchanger (6) rewarming, mix with fresh propane feeding gas again, user is sent into after the second cold mixed feeding heat exchanger (4) rewarming to normal temperature.
3. the two turbine booster expansion machine dehydrogenating propane ice chest separating technology of one according to claim 2, described reactor effluent is the mixture of propylene, propane and hydrogen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410559377.0A CN104296499B (en) | 2014-10-21 | 2014-10-21 | A kind of two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system and technique thereof |
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| CN201410559377.0A CN104296499B (en) | 2014-10-21 | 2014-10-21 | A kind of two turbine booster expansion machine dehydrogenating propane ice chest piece-rate system and technique thereof |
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| CN104296499B CN104296499B (en) | 2016-03-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439793A (en) * | 2015-12-08 | 2016-03-30 | 杭州杭氧股份有限公司 | Cold box low-temperature separation method for PDH project |
| CN108036583A (en) * | 2018-01-15 | 2018-05-15 | 杭州中泰深冷技术股份有限公司 | A kind of mixed alkanes reaction product swell refrigeration piece-rate system and its method |
| CN109999529A (en) * | 2019-04-22 | 2019-07-12 | 中科瑞奥能源科技股份有限公司 | Chemical industry tail gas process for separating and recovering and device |
| WO2021143418A1 (en) * | 2020-01-15 | 2021-07-22 | 浙江卫星能源有限公司 | Cryogenic separation process for dehydrogenation of propane into propylene |
| CN115597309A (en) * | 2022-10-19 | 2023-01-13 | 中科泓能（北京）科技有限公司（Cn） | Low-energy-consumption separation method and system for propane dehydrogenation product |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105439793A (en) * | 2015-12-08 | 2016-03-30 | 杭州杭氧股份有限公司 | Cold box low-temperature separation method for PDH project |
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| CN108036583B (en) * | 2018-01-15 | 2023-12-01 | 杭州中泰深冷技术股份有限公司 | Mixed alkane reaction product expansion refrigeration separation system and method thereof |
| CN109999529A (en) * | 2019-04-22 | 2019-07-12 | 中科瑞奥能源科技股份有限公司 | Chemical industry tail gas process for separating and recovering and device |
| WO2021143418A1 (en) * | 2020-01-15 | 2021-07-22 | 浙江卫星能源有限公司 | Cryogenic separation process for dehydrogenation of propane into propylene |
| CN115597309A (en) * | 2022-10-19 | 2023-01-13 | 中科泓能（北京）科技有限公司（Cn） | Low-energy-consumption separation method and system for propane dehydrogenation product |
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| CN104296499B (en) | 2016-03-23 |
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