WO2012173731A3 - Retrofitting radial flow reactors - Google Patents

Retrofitting radial flow reactors Download PDF

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Publication number
WO2012173731A3
WO2012173731A3 PCT/US2012/038157 US2012038157W WO2012173731A3 WO 2012173731 A3 WO2012173731 A3 WO 2012173731A3 US 2012038157 W US2012038157 W US 2012038157W WO 2012173731 A3 WO2012173731 A3 WO 2012173731A3
Authority
WO
WIPO (PCT)
Prior art keywords
radial flow
pipe
reactor
catalyst
installing
Prior art date
Application number
PCT/US2012/038157
Other languages
French (fr)
Other versions
WO2012173731A2 (en
Inventor
Kevin J. Knob
Original Assignee
Exxonmobil Chemical Patents Inc.
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 Exxonmobil Chemical Patents Inc. filed Critical Exxonmobil Chemical Patents Inc.
Publication of WO2012173731A2 publication Critical patent/WO2012173731A2/en
Publication of WO2012173731A3 publication Critical patent/WO2012173731A3/en

Links

Classifications

    • 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
    • B01J8/04—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 passing successively through two or more beds
    • B01J8/0403—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 passing successively through two or more beds the fluid flow within the beds being predominantly horizontal
    • B01J8/0407—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 passing successively through two or more beds the fluid flow within the beds being predominantly horizontal through two or more cylindrical annular shaped beds
    • B01J8/0415—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 passing successively through two or more beds the fluid flow within the beds being predominantly horizontal through two or more cylindrical annular shaped beds the beds being superimposed one above the other
    • 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
    • B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
    • 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
    • B01J8/0278—Feeding reactive fluids
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00938—Flow distribution elements
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
    • B01J2208/023—Details
    • B01J2208/024—Particulate material
    • B01J2208/025—Two or more types of catalyst
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00018—Construction aspects
    • B01J2219/00024—Revamping, retrofitting or modernisation of existing plants

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method is provided for converting a chemical reactor having a single radial flow catalyst bed into a reactor having two serially-arranged radial flow catalyst beds. The method is applicable to radial flow chemical reactors having a reactor tank containing a centrally disposed, fluid permeable pipe, a cover plate assembly disposed between the inlet end of the pipe and the tank inlet, and a fluid permeable wall circumscribing the inner wall of the tank. The method includes removing the cover plate assembly, installing a fluid impermeable obstructer such as a metal plate within a central portion of the pipe; installing a first fluid impermeable cover around the outer wall of the pipe where the obstructer is located, and then installing a second fluid impermeable cover around the inlet end of the pipe. The resulting reactor provides first and second serially-arranged radial flow chambers that can be filled with different catalysts that perform different functions. If the reactor is used to produce para-xylene from ethylbenzene, the upper radial flow chamber may contain a first catalyst that converts ethybenzene to benzene and ethane by dealkylation and the lower radial flow chamber may contain a second catalyst that completes the isomerization of xylenes to an equilibrium mixture.
PCT/US2012/038157 2011-06-15 2012-05-16 Retrofitting radial flow reactors WO2012173731A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161497316P 2011-06-15 2011-06-15
US61/497,316 2011-06-15

Publications (2)

Publication Number Publication Date
WO2012173731A2 WO2012173731A2 (en) 2012-12-20
WO2012173731A3 true WO2012173731A3 (en) 2013-04-25

Family

ID=47357661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/038157 WO2012173731A2 (en) 2011-06-15 2012-05-16 Retrofitting radial flow reactors

Country Status (1)

Country Link
WO (1) WO2012173731A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014209636A1 (en) * 2014-05-21 2015-11-26 Thyssenkrupp Ag Reactor with vertically movable gas barrier
GB201417462D0 (en) 2014-10-02 2014-11-19 Johnson Matthey Davy Technologies Ltd Apparatus and process
KR102562811B1 (en) * 2020-12-04 2023-08-02 이상국 Radial flow reactor
CN114699911B (en) * 2022-04-11 2023-06-20 苏州晶拓半导体科技有限公司 Ozone destruction device based on heat recovery and ozone destruction method thereof
CN115487751B (en) * 2022-09-13 2024-06-07 东营九洲奥华化工有限责任公司 Intelligent chemical reaction kettle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405562A (en) * 1980-11-28 1983-09-20 Ammonia Casale S.A. Axial-radial reactor for heterogeneous synthesis
US5250270A (en) * 1992-07-17 1993-10-05 The M. W. Kellogg Company Catalytic reactor bed
EP1080778A1 (en) * 1999-08-31 2001-03-07 Ammonia Casale S.A. Method for modernization of a heterogeneous synthesis reactor
US6569389B1 (en) * 1998-04-27 2003-05-27 Uop Llc Apparatus to alleviate thermal cycles in moving bed radial flow reactor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405562A (en) * 1980-11-28 1983-09-20 Ammonia Casale S.A. Axial-radial reactor for heterogeneous synthesis
US5250270A (en) * 1992-07-17 1993-10-05 The M. W. Kellogg Company Catalytic reactor bed
US6569389B1 (en) * 1998-04-27 2003-05-27 Uop Llc Apparatus to alleviate thermal cycles in moving bed radial flow reactor
EP1080778A1 (en) * 1999-08-31 2001-03-07 Ammonia Casale S.A. Method for modernization of a heterogeneous synthesis reactor

Also Published As

Publication number Publication date
WO2012173731A2 (en) 2012-12-20

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