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BR9713190A - Remoção e recuperação seletivas de dióxido de enxofre a partir de gases efluentes usando-se solventes de fósforo organico - Google Patents

Remoção e recuperação seletivas de dióxido de enxofre a partir de gases efluentes usando-se solventes de fósforo organico

Info

Publication number
BR9713190A
BR9713190A BR9713190-3A BR9713190A BR9713190A BR 9713190 A BR9713190 A BR 9713190A BR 9713190 A BR9713190 A BR 9713190A BR 9713190 A BR9713190 A BR 9713190A
Authority
BR
Brazil
Prior art keywords
sulfur dioxide
recovery
gas
organic
liquid solvent
Prior art date
Application number
BR9713190-3A
Other languages
English (en)
Inventor
Brian M Burmaster
Donald R Mclister
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of BR9713190A publication Critical patent/BR9713190A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/60—Isolation of sulfur dioxide from gases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Patente de Invenção:<B>"REMOçãO E RECUPERAçãO SELETIVAS DE DIóXIDO DE ENXOFRE A PARTIR DE GASES EFLUENTES USANDO-SE SOLVENTES DE FóSFORO ORGANICO"<D>. Processo para remoção seletiva e recuperação de dióxido de gases de efluente é descrito. O dióxido de enxofre é recuperador em um ciclo de absorção/dessorção de dióxido de enxofre que utiliza u solvente líquido para absorver seletivamente dióxido de enxofre do gás do efluente. O solvente líquido compreende um composto fosforoso orgânico selecionado de triésteres de fosfato, diésteres de fosfanato, monoésteres de fostinato e misturas do mesmo. Preferivelmente, o solvente líquido compreende de fórmula (I) em que R^ 3^ R^ 2^ são independentemente arila ou C~ 1~ a C~ 8~ alquila. Os diésteres de fosfonato orgânicos são substancialmente imiscíveis em água, a solubilidade da água em diéster de fosfonato orgânico é menor que 10 por cento em peso a 25°C, e tem uma pressão de vapor menor do que cerca de 1 Pa a 25°C. De acordo com uma concretização preferida, o solvente líquido compreende butil fosfonato de dibutila. O dióxido de enxofre absorvido é subseq³entemente extraído para regenerar o solvente fosforoso orgânico e produzir um gás enriquecido em teor de dióxido de enxofre. O gás enriquecido com dióxido de enxofre pode ser ursado como parte do gás de alimentação para uma planta de ácido sulfúrico de contato ou uma planta de Claus para preparação de enxofre elementar ou para ser resfriado para condensar o dióxido de enxofre na forma de um produto líquido. A presente invenção é particularmente útil na produção de gás enriquecido em dióxido de enxofre a partir de gases relativamente fracos em teor de dióxido de enxofre.
BR9713190-3A 1996-09-03 1997-08-12 Remoção e recuperação seletivas de dióxido de enxofre a partir de gases efluentes usando-se solventes de fósforo organico BR9713190A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/707,344 US5851265A (en) 1996-09-03 1996-09-03 Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents
PCT/US1997/014283 WO1998009713A1 (en) 1996-09-03 1997-08-12 Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents

Publications (1)

Publication Number Publication Date
BR9713190A true BR9713190A (pt) 1999-11-03

Family

ID=24841324

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713190-3A BR9713190A (pt) 1996-09-03 1997-08-12 Remoção e recuperação seletivas de dióxido de enxofre a partir de gases efluentes usando-se solventes de fósforo organico

Country Status (10)

Country Link
US (1) US5851265A (pt)
EP (1) EP0951338A1 (pt)
JP (1) JP2001500055A (pt)
KR (1) KR100499193B1 (pt)
CN (1) CN1103624C (pt)
BR (1) BR9713190A (pt)
CA (1) CA2264844A1 (pt)
EA (1) EA001297B1 (pt)
WO (1) WO1998009713A1 (pt)
ZA (1) ZA977408B (pt)

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CN107973278A (zh) * 2016-10-25 2018-05-01 中国石油化工股份有限公司 一种连续产生so3气体的方法
CN106744714A (zh) * 2016-11-18 2017-05-31 上海东化环境工程有限公司 一种从烟气中回收二氧化硫制硫酸的工艺
CN107335322A (zh) * 2016-11-18 2017-11-10 上海东化环境工程有限公司 一种从含so2烟气中回收液态so2的工艺
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US9943802B1 (en) 2017-03-13 2018-04-17 Saudi Arabian Oil Company Enhancement of claus tail gas treatment with membrane and reducing step
US10106411B2 (en) 2017-03-13 2018-10-23 Saudi Arabian Oil Company Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology
CN108176194A (zh) * 2018-01-16 2018-06-19 中国石油工程建设有限公司 一种含硫单质及化合物尾气的处理装置及处理方法
CN110124510A (zh) * 2019-01-29 2019-08-16 浙江天能电源材料有限公司 一种利用富氧侧吹铅冶炼烟气制取硫酸的方法
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Also Published As

Publication number Publication date
JP2001500055A (ja) 2001-01-09
US5851265A (en) 1998-12-22
EA199900259A1 (ru) 1999-08-26
ZA977408B (en) 1999-05-18
CN1103624C (zh) 2003-03-26
KR100499193B1 (ko) 2005-07-01
AU716416B2 (en) 2000-02-24
WO1998009713A1 (en) 1998-03-12
EP0951338A1 (en) 1999-10-27
AU4150497A (en) 1998-03-26
KR20010029453A (ko) 2001-04-06
CN1228715A (zh) 1999-09-15
CA2264844A1 (en) 1998-03-12
EA001297B1 (ru) 2000-12-25

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements