TWI393703B - 烯烴設備之低溫分離階段之冷供給方法 - Google Patents

烯烴設備之低溫分離階段之冷供給方法 Download PDF

Info

Publication number
TWI393703B
TWI393703B TW096104201A TW96104201A TWI393703B TW I393703 B TWI393703 B TW I393703B TW 096104201 A TW096104201 A TW 096104201A TW 96104201 A TW96104201 A TW 96104201A TW I393703 B TWI393703 B TW I393703B
Authority
TW
Taiwan
Prior art keywords
olefin
stage
carbon atoms
low temperature
fraction
Prior art date
Application number
TW096104201A
Other languages
English (en)
Other versions
TW200736216A (en
Inventor
Tuat Pham Duc
Original Assignee
Linde Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linde Ag filed Critical Linde Ag
Publication of TW200736216A publication Critical patent/TW200736216A/zh
Application granted granted Critical
Publication of TWI393703B publication Critical patent/TWI393703B/zh

Links

Classifications

    • 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
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0219—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/09—Purification; Separation; Use of additives by fractional condensation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G70/00—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00
    • C10G70/04—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00 by physical processes
    • C10G70/043—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00 by physical processes by fractional condensation
    • 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
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • 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
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0238—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 2 carbon atoms or more
    • 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
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0242—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 3 carbon atoms or more
    • 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
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0252—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of hydrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/20—C2-C4 olefins
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
    • F25J2200/94—Details relating to the withdrawal point
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/82—Processes or apparatus using other separation and/or other processing means using a reactor with combustion or catalytic reaction
    • 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
    • F25J2210/04—Mixing or blending of fluids with the feed stream
    • 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
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/62—Ethane or ethylene
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • 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
    • F25J2270/02—Internal refrigeration with liquid vaporising loop
    • 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
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/40—Ethylene production

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

烯烴設備之低溫分離階段之冷供給方法
本發明係關於提供低溫之方法，使用冷媒、在自含烴之進料製造烯烴之設備(烯烴設備)中，提供具有一或兩個碳原子之烯烴的低溫分離階段之低溫供給方法，該低溫分離階段包括自-50℃至-100℃之三個冷凝階段且被連接在分餾階段的下游，此分餾階段從具有至少三個碳原子之烯烴中分離具有至多兩個碳原子之烯烴(前段去乙烷塔)。
烯烴，舉例而言可經由在裂解爐(蒸汽裂解器)中自較長鏈烴類之熱裂解而製造。將在裂解程序後所產生之氣體(原料氣體)在複數的分餾階段中分離成為具有不同數目的碳原子之烯烴。根據先前技藝，在低溫分離階段中將具有一個碳原子之烯烴與具有兩個碳原子之烯烴分離。低溫分離係在自-50℃至-100℃之三個冷凝階段中進行，將乙烯、乙烷和甲烷連續地冷凝出並排出氣態氫。通常，將低溫分離階段的上游連接一分餾階段，其自具有三個碳原子之烯烴中分離具有至多兩個碳原子之烯烴(前段去乙烷塔)。根據先前技藝，歷自-50℃至-100℃溫度範圍之三個冷凝階段之冷凍能係由冷凍循環予以產生，該冷凍循環係使用汽化之乙烯作為冷凍劑其係自經由烯烴設備所產生之乙烯氣流予以產生，利用相對應之壓縮機循環包括壓縮機、渦輪機、熱交換器、分離器和出口容器。此情況中，為了乙烯冷凍劑產生所需要之壓縮機循環增加資本成本，亦增加烯烴設 備之操作風險。
本發明的目的是以如此方式設計在開頭所述之該型的方法，即，以經濟方式，可靠保證將冷供給至烯烴設備的低溫分離階段。
關於根據本發明之方法，此目的係由該方法予以達成，即，將一部分的具有兩個碳原子之液態烯烴餾份自前段去乙烷塔取出作為冷凍劑。
用於提供低溫分離階段之冷凍能之壓縮機循環的資本成本並非烯烴設備的小部分之資本成本。此外，由於壓縮機循環，操作步驟的風險增加，而因此為原料氣體分離順序有效性之風險。
本發明的基本概念是省略用於乙烯冷凍劑產生之壓縮機循環而使用來自前段去乙烷塔之一部分的具有兩個碳原子之液態烯烴餾份作為冷凍劑。
根據本發明特佳之實施例，使用一部分的來自前段去乙烷塔之液態乙烯餾份作為低溫分離階段的三個冷凝階段之冷凍劑。有利地，將所取出之液態乙烯餾份經由熱交換器引導至各冷凝階段並予以汽化，由於此操作的結果，產生所需要之冷凍能。根據本發明，將汽化之乙烯循環至烯烴設備的原料氣體壓縮機。
本發明概念的發展提供：將催化氫化階段連接在前段去乙烷塔與低溫分離階段之間。
藉本發明，特別將必須之冷凍能成功地提供予烯烴設 備的低溫分離階段。同時，資本成本及操作步驟的風險經由省略包括壓縮機、渦輪機、熱交換器、分離器和出口容器之壓縮機循環予以減至最少。
第1圖中所示之流程圖顯示先前技藝的烯烴設備之一部分的分離順序。在原料氣體壓縮機(1)、前冷卻器和乾燥器(2)的下游，將原料氣體導引入前段去乙烷塔(3)中，在其中將原料氣體分離成為具有至多兩個碳原子之餾份及具有至少三個碳原子之餾份，且將具有至少三個碳原子之餾份導引至較長鏈烯烴(4)的進一步分離順序。將具有至多兩個碳原子之烯烴餾份經由催化氫化階段(5)導引至低溫分離階段(6)。自低溫分離階段，烯烴通至另外之分餾階段(7)，在其中將具有一個碳原子之烯烴與具有兩個碳原子之烯烴分離。在低溫分離階段中，將氣態氫(9)和甲烷(10)取出。在低溫分離階段(6)的自-50℃至-100℃溫度範圍內之三個冷凝階段之冷凍能係經由分離壓縮機循環(8)予以提供。
第2圖顯示本發明的一個實施例之流程圖。在原料氣體壓縮機(1)、前冷卻器和乾燥器(2)的下游，將原料氣體導引入前段去乙烷塔(3)中，於該處將原料氣體分離成為具有至多兩個碳原子之餾份及具有至少三個碳原子之餾份。將具有至少三個碳原子之餾份進給至較長鏈烯烴(4)之另外分離順序，同時將具有至多兩個碳原子之餾份經由催化氫化階段(5)導引至低溫分離階段(6)，自該處使原料氣體通至分餾階段其分離具有一個碳原子之烯烴與具有兩個碳原子 之烯烴(7)。自低溫分離階段，排放氣態氫(9)和甲烷(10)。低溫分離階段的三個冷凝階段之冷凍能係由經由熱交換器汽化來自前段去乙烷塔(3)之液態乙烯餾份(3A)予以供應。將汽化之乙烯餾份(11)循環回至原料氣體壓縮機(1)。
1‧‧‧原料氣體壓縮機
2‧‧‧前冷卻器和乾燥器
3‧‧‧前段去乙烷塔
3A‧‧‧液態乙烯餾份
4‧‧‧較長鏈烯烴的分離順序
5‧‧‧催化氫化階段
6‧‧‧低溫分離階段
7‧‧‧分餾階段
8‧‧‧分離壓縮機循環
9‧‧‧氣態氫
10‧‧‧甲烷
11‧‧‧汽化乙烯餾份
第1圖顯示根據先前技藝，具有前段去乙烷塔、低溫分離階段和冷供給之烯烴設備流程圖。
第2圖顯示本發明之烯烴設備的流程圖具有前段去乙烷塔和隨後之催化氫化階段、低溫分離階段和經由一部分的去乙烷塔的液態乙烯餾份之冷供給。
1‧‧‧原料氣體壓縮機
2‧‧‧前冷卻器和乾燥器
3A‧‧‧液態乙烯餾份
3‧‧‧前段去乙烷塔
4‧‧‧較長鏈烯烴的分離順序
5‧‧‧催化氫化階段
6‧‧‧低溫分離階段
7‧‧‧分餾階段
8‧‧‧分離壓縮機循環
9‧‧‧氣態氫
10‧‧‧甲烷
11‧‧‧汽化乙烯餾份

Claims (5)

  1. 一種提供低溫之方法，其係使用冷媒、在自含烴之進料製造烯烴之設備(烯烴設備)中提供低溫之方法，其係用於在具有一或兩個碳原子之烯烴的低溫分離階段之低溫供給，該低溫分離階段包括自-50℃至-100℃之三個冷凝階段且被連接在分餾階段的下游，此分餾階段(前段去乙烷塔)將具有至多兩個碳原子之烯烴從具有至少三個碳原子之烯烴中分離出來，該方法之特徵為：經熱交換器自該前段去乙烷塔取出之該具有兩個碳原子之液態烯烴餾份作為冷媒，用以提供該三個冷凝階段之冷凍能。
  2. 如申請專利範圍第1項之方法，其中具有兩個碳原子之液態烯烴餾份係經由該熱交換器予以汽化。
  3. 如申請專利範圍第2項之方法，其中將在該熱交換器中予以汽化之具有兩個碳原子之烯烴餾份循環至未經分離之烯烴的一壓縮機階段，該壓縮機階段係位於該前段去乙烷塔之上游。
  4. 如申請專利範圍第1項之方法，其中將在該熱交換器中予以汽化之具有兩個碳原子之烯烴餾份循環至未經分離之烯烴的一壓縮機階段，該壓縮機階段係位於該前段去乙烷塔之上游。
  5. 如申請專利範圍第1至4項中任一項之方法，其進一步將催化氫化階段連接在前段去乙烷塔與低溫分離階段之間。
TW096104201A 2006-02-08 2007-02-06 烯烴設備之低溫分離階段之冷供給方法 TWI393703B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006005822A DE102006005822A1 (de) 2006-02-08 2006-02-08 Verfahren zur Kälteversorgung der Tieftemperaturtrennungsstufe einer Olefinanlage

Publications (2)

Publication Number Publication Date
TW200736216A TW200736216A (en) 2007-10-01
TWI393703B true TWI393703B (zh) 2013-04-21

Family

ID=38008006

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096104201A TWI393703B (zh) 2006-02-08 2007-02-06 烯烴設備之低溫分離階段之冷供給方法

Country Status (7)

Country Link
US (1) US7554002B2 (zh)
EP (1) EP1818634B1 (zh)
CN (1) CN101017049B (zh)
BR (1) BRPI0700241A (zh)
DE (1) DE102006005822A1 (zh)
ES (1) ES2669048T3 (zh)
TW (1) TWI393703B (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2969745B1 (fr) 2010-12-27 2013-01-25 Technip France Procede de production d'un courant riche en methane et d'un courant riche en hydrocarbures en c2+ et installation associee.
FR3012150B1 (fr) * 2013-10-23 2016-09-02 Technip France Procede de fractionnement d'un courant de gaz craque, mettant en oeuvre un courant de recycle intermediaire, et installation associee
EP3040405A1 (en) 2014-12-30 2016-07-06 Technip France Method for improving propylene recovery from fluid catalytic cracker unit
RU2017132467A (ru) 2015-02-19 2019-03-19 Сабик Глобал Текнолоджиз Б.В. Системы и способы, связанные с производством полиэтилена
CN107428710A (zh) 2015-03-05 2017-12-01 赛贝克环球科技公司 与生产环氧乙烷、乙二醇和/或乙醇胺有关的系统和方法
US10745624B2 (en) 2015-05-08 2020-08-18 Sabic Global Technologies B.V. Systems and methods related to syngas to olefin production
EP3294668A1 (en) 2015-05-08 2018-03-21 SABIC Global Technologies B.V. Systems and methods related to olefin production
CN104826445B (zh) * 2015-05-15 2017-05-03 大连理工大学 回收乙烯压缩制冷系统开车尾气的分离工艺
WO2016185335A1 (en) 2015-05-15 2016-11-24 Sabic Global Technologies B.V. Systems and methods related to the syngas to olefin process
CN107635950A (zh) 2015-05-15 2018-01-26 赛贝克环球科技公司 与合成气制烯烃工艺相关的系统和方法
EP3339277A1 (de) * 2016-12-22 2018-06-27 Linde Aktiengesellschaft Verfahren und anlage zur herstellung eines olefins
EP3385248A1 (de) 2017-04-07 2018-10-10 Linde Aktiengesellschaft Verfahren und anlage zur gewinnung eines oder mehrerer olefine
EP3434662A1 (de) * 2017-07-26 2019-01-30 Linde Aktiengesellschaft Verfahren und anlage zur gewinnung von olefinen
CN110407658B (zh) * 2019-07-31 2021-11-30 北京恒泰洁能科技有限公司 一种低能耗乙烷裂解气深冷分离工艺方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453559A (en) * 1994-04-01 1995-09-26 The M. W. Kellogg Company Hybrid condensation-absorption olefin recovery
WO2004065337A2 (en) * 2003-01-15 2004-08-05 Abb Lummus Global Inc. Olefin plant refrigeration system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1054283B (it) * 1976-01-21 1981-11-10 Snam Progetti Procedimento per la separazione di etilene da etano
US4629484A (en) * 1983-08-31 1986-12-16 C F Braun & Co. Process for separating hydrogen and methane from an ethylene rich stream
US5035732A (en) * 1990-01-04 1991-07-30 Stone & Webster Engineering Corporation Cryogenic separation of gaseous mixtures
US5372009A (en) * 1993-11-09 1994-12-13 Mobil Oil Corporation Cryogenic distillation
FR2817767B1 (fr) * 2000-12-07 2003-02-28 Technip Cie Procede et installation pour la recuperation et la purification de l'ethylene produit par pyrolyse d'hydrocarbures, et gaz obtenus par procede
CN100422675C (zh) * 2001-09-11 2008-10-01 中国石油化工股份有限公司 一种改进的轻烃深冷分离方法
US7294749B2 (en) * 2004-07-02 2007-11-13 Kellogg Brown & Root Llc Low pressure olefin recovery process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453559A (en) * 1994-04-01 1995-09-26 The M. W. Kellogg Company Hybrid condensation-absorption olefin recovery
WO2004065337A2 (en) * 2003-01-15 2004-08-05 Abb Lummus Global Inc. Olefin plant refrigeration system

Also Published As

Publication number Publication date
US20070199865A1 (en) 2007-08-30
EP1818634A2 (de) 2007-08-15
US7554002B2 (en) 2009-06-30
EP1818634A3 (de) 2013-11-06
TW200736216A (en) 2007-10-01
BRPI0700241A (pt) 2007-11-06
CN101017049B (zh) 2012-07-25
ES2669048T3 (es) 2018-05-23
CN101017049A (zh) 2007-08-15
EP1818634B1 (de) 2018-04-04
DE102006005822A1 (de) 2007-08-23

Similar Documents

Publication Publication Date Title
TWI393703B (zh) 烯烴設備之低溫分離階段之冷供給方法
JP5620927B2 (ja) 炭化水素ガスの処理
CA2819128C (en) Ngl recovery from natural gas using a mixed refrigerant
RU2554736C2 (ru) Способ очистки многофазного углеводородного потока и предназначенная для этого установка
RU2764176C2 (ru) Способ извлечения потока с2+ углеводородов, содержащихся в нефтезаводском остаточном газе, и установка для его осуществления
US8256243B2 (en) Integrated olefin recovery process
KR102316686B1 (ko) 수소 함유 탄화수소 혼합물의 분리 방법, 분리 장치 및 올레핀 플랜트
RU2701018C2 (ru) Способ увеличения выхода этилена и пропилена на установке получения пропилена
NO312858B1 (no) Fremgangsmåte for fremstilling av etan og system for utförelse av fremgangsmåten
CN109111336B (zh) 一种费拖合成尾气深冷回收装置及工艺
US20110041550A1 (en) Process and apparatus for the separation of light-boiling components from hydrocarbon mixtures
KR20110010776A (ko) 등압 개방 냉동 ｎｇｌ 회수
WO2022213053A1 (en) Method of producing a hydrogen-enriched product and recovering co2 in a hydrogen production process unit
WO2022213056A1 (en) Method of recovering a hydrogen-enriched product and co2 in a hydrogen production unit
JP5793139B2 (ja) 炭化水素ガス処理
US20150329445A1 (en) Process for recovering hydrocarbons from polyolefin plants and apparatus suitable for this purpose
WO2015140460A2 (fr) Procédé et appareil de séparation cryogénique d'un gaz de synthèse contenant du monoxyde de carbone, du méthane et de l'hydrogène
CA2990309A1 (en) Obtaining hydrogen from light hydrocarbons with counterflow absorption
RU2688533C1 (ru) Установка нтдр для комплексной подготовки газа и получения спг и способ ее работы
AU2012292617A1 (en) Separation sequence for hydrocarbons from a gentle thermal cleavage
TW200800885A (en) Method for separation of olefins
JP2013525722A (ja) 炭化水素ガス処理
TW201718067A (zh) 利用分離技術處理起始混合物的方法及系統
RU2501779C1 (ru) Способ выделения этилена полимеризационной чистоты из газов каталитического крекинга
RU2395046C2 (ru) Способ низкотемпературного разделения содержащего углеводороды массопотока