WO2014130066A1 - Separation processes using divided columns - Google Patents

Separation processes using divided columns Download PDF

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Publication number
WO2014130066A1
WO2014130066A1 PCT/US2013/031591 US2013031591W WO2014130066A1 WO 2014130066 A1 WO2014130066 A1 WO 2014130066A1 US 2013031591 W US2013031591 W US 2013031591W WO 2014130066 A1 WO2014130066 A1 WO 2014130066A1
Authority
WO
WIPO (PCT)
Prior art keywords
column
distillation column
product
overhead
components
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.)
Ceased
Application number
PCT/US2013/031591
Other languages
English (en)
French (fr)
Inventor
Manish BHARGAVA
Cole Nelson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer GTC Technology US Inc
Original Assignee
GTC Technology US LLC
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
Priority to AU2013378772A priority Critical patent/AU2013378772A1/en
Priority to SG11201506454TA priority patent/SG11201506454TA/en
Priority to CA2901972A priority patent/CA2901972A1/en
Priority to EP13875884.2A priority patent/EP2958649A4/en
Priority to MYPI2015702730A priority patent/MY192380A/en
Priority to RU2015139730A priority patent/RU2638846C2/ru
Priority to JP2015559222A priority patent/JP6321048B2/ja
Priority to CN201380073676.7A priority patent/CN105339062B/zh
Application filed by GTC Technology US LLC filed Critical GTC Technology US LLC
Priority to BR112015020177A priority patent/BR112015020177A2/pt
Priority to MX2015010638A priority patent/MX2015010638A/es
Priority to KR1020157025928A priority patent/KR102091679B1/ko
Publication of WO2014130066A1 publication Critical patent/WO2014130066A1/en
Priority to IL240564A priority patent/IL240564A0/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/141—Fractional distillation or use of a fractionation or rectification column where at least one distillation column contains at least one dividing wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications

Definitions

  • the claimed invention (Top Dividing Wall Column Depropanizer or TDWC) provides an innovative technique wherein the two column system is combined into a single column.
  • the light components are concentrated on the prefractionation side (feed side) of the column, where they are removed as an overhead top product.
  • FIG. 1 represents the prior art.
  • the column operates at 390 psig with an overhead temperature of 95 °F.
  • This conventional depropanizer aims at separating C2/C 3 components as an overhead product and C4/C4 components as the bottoms product of the column.
  • the prior art possesses several disadvantages. It is not possible to condense the lighter components in the overhead product at 350 psig and using cooling water as the overhead cooling media.
  • the overhead system has a partial condenser. C 2 and lighter components (used as fuel gas) are drawn as the vapor product from the partial condenser. C 3 product is the liquid stream from the partial condenser. A considerable amount of C3 components are lost to the fuel gas vapor stream. The loss of C3 components can be prevented by decreasing the overhead temperature (e.g., by using refrigeration) or increasing the column pressure. However, this increases the operating cost of the column.
  • the prior art systems offers a sharp split between C3 and C3+, the recoveries of these components is low as they are lost in the fuel gas vapor stream.
  • FIG. 1 represents a prior art separation process in accordance with an embodiment of the invention
  • FIG. 3 represents a process scheme in accordance with an embodiment of the invention.
  • An embodiment of the invention is directed to a process wherein two different unit operations (absorption and distillation) take place on either side of a top dividing wall column.
  • two different unit operations absorption and distillation
  • the innovation is explained through an example, a conventional depropanizing system
  • a distillation column having a top dividing wall is shown.
  • the top divided column has a feed side that is located on one side of the dividing wall and a product side on the opposite side of the dividing wall.
  • the bottom portion of the top divided column i.e., the opposite side of the top divided column is the main section.
  • the process scheme of the claimed invention is designed to separate C 2 (Non condensables), C 3 (intermediate component), C 3 . (Heavies) in a single top divided column.
  • the feed stream is first sent to the pre-fractionation side of the top divided column.
  • the vertical dividing wall splits the top portion of the column into two halves.
  • the feed side of the wall is called the pre-fractionation section.
  • the non- condensables (used as fuel gas) is removed as overhead vapor product from a vent condenser.
  • the column overhead pressure is set at 350 psig via a pressure controller on the overhead fuel gas product line.
  • the section above the feed acts as an absorption section that us primarily used to minimize the loss of C 3 components.
  • the pre- ractionation side has reflux coming from two sources: A liquid stream condensed from a vent condenser; and a heavy stream from a bottoms pump.
  • the vapor from the overhead of the main section is condensed and cooled to 95°F in air-cooled exchanger followed by the water- cooled condenser.
  • the condenser outlet is collected in an overhead receiver.
  • the C3 light liquid is pumped out of the drum via reflux pumps. A portion of the light liquid is sent back to the column as reflux and the remainder is withdrawn as C3 product.
  • the operating pressure of the column is controlled by a pressure control loop installed on the non-condensable line going to the fuel gas header, while the pressure in the overhead received is controlled by a hot by-pass pressure control loop.
  • the temperature in top section of the main column is controlled in cascade with the reflux flow control loop. This allows control over the quality of the C3 product by suppressing the tendency of the heavier components from going to the top of the column.
  • the reboiler connected to the main section is a thermosyphon steam reboiler that uses steam as heating medium.
  • the heat input to the reboiler is regulated by controlling the steam flow cascaded to the column bottom tray temperature controller.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
PCT/US2013/031591 2013-02-21 2013-03-14 Separation processes using divided columns Ceased WO2014130066A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP2015559222A JP6321048B2 (ja) 2013-02-21 2013-03-14 分割された塔を用いた分離プロセス
CA2901972A CA2901972A1 (en) 2013-02-21 2013-03-14 Separation processes using divided columns
EP13875884.2A EP2958649A4 (en) 2013-02-21 2013-03-14 SEPARATION PROCEDURE USING SEPARATED PILLARS
MYPI2015702730A MY192380A (en) 2013-02-21 2013-03-14 Separation processes using divided columns
RU2015139730A RU2638846C2 (ru) 2013-02-21 2013-03-14 Процессы разделения с использованием колонн с разделительными стенками
CN201380073676.7A CN105339062B (zh) 2013-02-21 2013-03-14 使用分隔塔的分离方法
BR112015020177A BR112015020177A2 (pt) 2013-02-21 2013-03-14 processo de separação através do uso de colunas divididas
AU2013378772A AU2013378772A1 (en) 2013-02-21 2013-03-14 Separation processes using divided columns
SG11201506454TA SG11201506454TA (en) 2013-02-21 2013-03-14 Separation processes using divided columns
MX2015010638A MX2015010638A (es) 2013-02-21 2013-03-14 Procesos de separacion usando columnas divididas.
KR1020157025928A KR102091679B1 (ko) 2013-02-21 2013-03-14 분할된 증류탑을 사용하는 분리 공정
IL240564A IL240564A0 (en) 2013-02-21 2015-08-13 Separation processes using partitioned columns

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361767434P 2013-02-21 2013-02-21
US61/767,434 2013-02-21

Publications (1)

Publication Number Publication Date
WO2014130066A1 true WO2014130066A1 (en) 2014-08-28

Family

ID=51350368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/031591 Ceased WO2014130066A1 (en) 2013-02-21 2013-03-14 Separation processes using divided columns

Country Status (17)

Country Link
US (1) US9724619B2 (enExample)
EP (1) EP2958649A4 (enExample)
JP (2) JP6321048B2 (enExample)
KR (1) KR102091679B1 (enExample)
CN (1) CN105339062B (enExample)
AR (1) AR094864A1 (enExample)
AU (1) AU2013378772A1 (enExample)
BR (1) BR112015020177A2 (enExample)
CA (1) CA2901972A1 (enExample)
IL (1) IL240564A0 (enExample)
MX (1) MX2015010638A (enExample)
MY (1) MY192380A (enExample)
RU (1) RU2638846C2 (enExample)
SA (1) SA114350287B1 (enExample)
SG (1) SG11201506454TA (enExample)
TW (1) TWI632948B (enExample)
WO (1) WO2014130066A1 (enExample)

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CN104788295A (zh) * 2015-03-19 2015-07-22 万华化学集团股份有限公司 一种3-甲基-2-丁烯-1-醛二异戊烯基缩醛的制备方法
WO2019191373A1 (en) * 2018-03-29 2019-10-03 Uop Llc Folded fractionation column and process
CN110487025A (zh) * 2019-08-23 2019-11-22 乔治洛德方法研究和开发液化空气有限公司 一种空气分离装置
US10792586B2 (en) 2018-03-29 2020-10-06 Uop Llc Folded fractionation column and process

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JP2911623B2 (ja) 1991-02-07 1999-06-23 臼井国際産業株式会社 液体クラッチ
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JP3346644B2 (ja) 1994-03-19 2002-11-18 臼井国際産業株式会社 液体クラッチ
KR101583145B1 (ko) * 2013-07-18 2016-01-07 주식회사 엘지화학 증류 장치
TWI717316B (zh) * 2014-01-24 2021-02-01 美商Ｇｔｃ科技美國有限責任公司 用來執行吸收/蒸餾之分離系統
WO2016134055A1 (en) * 2015-02-17 2016-08-25 Gtc Technology Us Llc Top dividing wall column technology to improve processing of xylenes
CN104930815A (zh) * 2015-06-16 2015-09-23 上海交通大学 适用于海上的天然气液化及ngl回收系统及应用
CN106823434A (zh) * 2017-01-06 2017-06-13 绍兴市上虞区耕创化工技术服务部 连续式双塔蒸馏装置及蒸馏方法
CA3074603C (en) 2017-09-28 2024-04-02 Exxonmobil Research And Engineering Company Dual-dividing wall column with multiple products
US10653975B2 (en) * 2018-04-30 2020-05-19 Gtc Technology Us Llc Network of dividing-wall columns in complex processing units
US11207611B1 (en) 2018-07-03 2021-12-28 Burns & Mcdonnell Engineering Company, Inc. Process for separating hydrocarbons in a liquid feed utilizing an externally heated reboiler connected to a divided wall column as the primary source of heat energy
CN112689662B (zh) 2018-09-14 2024-02-06 埃克森美孚科技工程公司 用于具有多种产物的分隔壁塔和双分隔壁塔的先进过程控制方案
US11236277B1 (en) * 2020-11-18 2022-02-01 Kellogg Brown & Root Llc Dividing wall column in a fluid catalytic cracking gas plant for naphtha absorption, stripping, and stabilization service
CN112933643B (zh) * 2021-02-23 2022-07-19 滕州华安虹江化工有限公司 智能化的精馏釜
CN116323537B (zh) 2021-09-14 2025-07-22 株式会社Lg化学 多组分混合物分离系统
US20240165534A1 (en) * 2022-11-23 2024-05-23 Uop Llc Dehydrogenation and pyrolysis product recovery with a common depropanizer

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CN104788295A (zh) * 2015-03-19 2015-07-22 万华化学集团股份有限公司 一种3-甲基-2-丁烯-1-醛二异戊烯基缩醛的制备方法
WO2019191373A1 (en) * 2018-03-29 2019-10-03 Uop Llc Folded fractionation column and process
US10792586B2 (en) 2018-03-29 2020-10-06 Uop Llc Folded fractionation column and process
US10792585B2 (en) 2018-03-29 2020-10-06 Uop Llc Folded fractionation column and process
CN110487025A (zh) * 2019-08-23 2019-11-22 乔治洛德方法研究和开发液化空气有限公司 一种空气分离装置

Also Published As

Publication number Publication date
MY192380A (en) 2022-08-17
JP6321048B2 (ja) 2018-05-09
MX2015010638A (es) 2015-12-15
TWI632948B (zh) 2018-08-21
AR094864A1 (es) 2015-09-02
RU2015139730A (ru) 2017-03-24
SG11201506454TA (en) 2015-09-29
TW201438803A (zh) 2014-10-16
US20140231238A1 (en) 2014-08-21
RU2638846C2 (ru) 2017-12-18
SA114350287B1 (ar) 2018-01-04
CA2901972A1 (en) 2014-08-28
IL240564A0 (en) 2015-09-24
EP2958649A1 (en) 2015-12-30
EP2958649A4 (en) 2016-09-07
US9724619B2 (en) 2017-08-08
JP2018086650A (ja) 2018-06-07
KR20150120500A (ko) 2015-10-27
CN105339062B (zh) 2021-03-26
KR102091679B1 (ko) 2020-03-23
CN105339062A (zh) 2016-02-17
JP2016514040A (ja) 2016-05-19
BR112015020177A2 (pt) 2017-07-18
AU2013378772A1 (en) 2015-10-08

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