OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME

OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME

FIELD: chemistry.SUBSTANCE: claimed invention relates to method for obtaining aromatic dicarboxylic acid, which includes (a) oxidation of aromatic compound in at least on oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing aromatic dicarboxylic acid; (b) introducti...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: APSHO TIMOTI ALAN, SHEPPARD RONALD BAFORD, FOGL REJMOND ELBERT, UANDERZ ALAN DZHORDZH
Format: Patent
Sprache:eng ; rus
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator APSHO TIMOTI ALAN
SHEPPARD RONALD BAFORD
FOGL REJMOND ELBERT
UANDERZ ALAN DZHORDZH
description FIELD: chemistry.SUBSTANCE: claimed invention relates to method for obtaining aromatic dicarboxylic acid, which includes (a) oxidation of aromatic compound in at least on oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing aromatic dicarboxylic acid; (b) introduction of at least part of said oxidised off-gas into system for extraction of solvent, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated off-gas, containing volatile organic compound (VOC); and (d) passing, at least, part of said heated off-gas through turboexpander, in which, at least, 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander. The invention also relates to method for obtaining terephthalic acid, which includes (a) oxidation of paraxylene in at least one oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing terephthalic acid; (b) introduction of at least part of said oxidised off-gas into system for solvent extraction, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated VOC-containing off-gas, and (d) passing of at least part of said heated off-gas through turboexpander, in which at least 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander, where said hot combustion products are added to said solvent-depleted off-gas in amount, sufficient for supporting said heated off-gas at temperature, which is at least 5°C higher than its local condensation temperature throughout in the process of said heated off-gas passing through said turboexpander, and where temperature of said heated off-gas is, at least, 10°C higher than temperature of said solvent-depleted off-gas, where amount of thermal energy, supplied to said solvent-depleted off-gas by said hot combustion product, is in the range 100-1000 Watt per kilogram of said aromatic compound, supplied into said installation for oxidation.EFFECT: method relates to improved extraction of power on shaft from off-gas of xylene oxidation reaction while bringing cost of sewage water processing to minimum L
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_RU2577244C2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>RU2577244C2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_RU2577244C23</originalsourceid><addsrcrecordid>eNrjZHD1dwpx9PTz9HNXcPF0dgxy8o-I9PF0VnB09nRRCPcM8QAKB7k6hyh4uDqGgFT5uwGRm667YzBE2s3H0deVh4E1LTGnOJUXSnMzKLi5hjh76KYW5MenFhckJqfmpZbEB4UamZqbG5mYOBsZE6EEAABYK1U</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME</title><source>esp@cenet</source><creator>APSHO TIMOTI ALAN ; SHEPPARD RONALD BAFORD ; FOGL REJMOND ELBERT ; UANDERZ ALAN DZHORDZH</creator><creatorcontrib>APSHO TIMOTI ALAN ; SHEPPARD RONALD BAFORD ; FOGL REJMOND ELBERT ; UANDERZ ALAN DZHORDZH</creatorcontrib><description>FIELD: chemistry.SUBSTANCE: claimed invention relates to method for obtaining aromatic dicarboxylic acid, which includes (a) oxidation of aromatic compound in at least on oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing aromatic dicarboxylic acid; (b) introduction of at least part of said oxidised off-gas into system for extraction of solvent, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated off-gas, containing volatile organic compound (VOC); and (d) passing, at least, part of said heated off-gas through turboexpander, in which, at least, 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander. The invention also relates to method for obtaining terephthalic acid, which includes (a) oxidation of paraxylene in at least one oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing terephthalic acid; (b) introduction of at least part of said oxidised off-gas into system for solvent extraction, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated VOC-containing off-gas, and (d) passing of at least part of said heated off-gas through turboexpander, in which at least 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander, where said hot combustion products are added to said solvent-depleted off-gas in amount, sufficient for supporting said heated off-gas at temperature, which is at least 5°C higher than its local condensation temperature throughout in the process of said heated off-gas passing through said turboexpander, and where temperature of said heated off-gas is, at least, 10°C higher than temperature of said solvent-depleted off-gas, where amount of thermal energy, supplied to said solvent-depleted off-gas by said hot combustion product, is in the range 100-1000 Watt per kilogram of said aromatic compound, supplied into said installation for oxidation.EFFECT: method relates to improved extraction of power on shaft from off-gas of xylene oxidation reaction while bringing cost of sewage water processing to minimum Larger power on shaft is obtained by application of off-gas, required for functioning primary air compressor, even with preferable relatively low oxidation temperature.25 cl, 1 dwg Настоящее изобретение относится к cпособу получения ароматической дикарбоновой кислоты, включающему (a) окисление ароматического соединения по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий ароматическую дикарбоновую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий газ, содержащий летучее органическое соединение (VOC); и (d) пропускание, по меньшей мере, части указанного нагретого отходящего газа через турбодетандер, в котором, по меньшей мере, 50 мольных процентов гидрокарбильных соединений, присутствующих в указанном обедненном растворителем отходящем газе, покидающем указанную систему для извлечения растворителя, пропускают через указанный турбодетандер. Изобретение относится также к способу получения терефталевой кислоты, включающему (a) окисление пара-ксилола по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий терефталевую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий га</description><language>eng ; rus</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20160310&amp;DB=EPODOC&amp;CC=RU&amp;NR=2577244C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20160310&amp;DB=EPODOC&amp;CC=RU&amp;NR=2577244C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>APSHO TIMOTI ALAN</creatorcontrib><creatorcontrib>SHEPPARD RONALD BAFORD</creatorcontrib><creatorcontrib>FOGL REJMOND ELBERT</creatorcontrib><creatorcontrib>UANDERZ ALAN DZHORDZH</creatorcontrib><title>OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME</title><description>FIELD: chemistry.SUBSTANCE: claimed invention relates to method for obtaining aromatic dicarboxylic acid, which includes (a) oxidation of aromatic compound in at least on oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing aromatic dicarboxylic acid; (b) introduction of at least part of said oxidised off-gas into system for extraction of solvent, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated off-gas, containing volatile organic compound (VOC); and (d) passing, at least, part of said heated off-gas through turboexpander, in which, at least, 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander. The invention also relates to method for obtaining terephthalic acid, which includes (a) oxidation of paraxylene in at least one oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing terephthalic acid; (b) introduction of at least part of said oxidised off-gas into system for solvent extraction, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated VOC-containing off-gas, and (d) passing of at least part of said heated off-gas through turboexpander, in which at least 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander, where said hot combustion products are added to said solvent-depleted off-gas in amount, sufficient for supporting said heated off-gas at temperature, which is at least 5°C higher than its local condensation temperature throughout in the process of said heated off-gas passing through said turboexpander, and where temperature of said heated off-gas is, at least, 10°C higher than temperature of said solvent-depleted off-gas, where amount of thermal energy, supplied to said solvent-depleted off-gas by said hot combustion product, is in the range 100-1000 Watt per kilogram of said aromatic compound, supplied into said installation for oxidation.EFFECT: method relates to improved extraction of power on shaft from off-gas of xylene oxidation reaction while bringing cost of sewage water processing to minimum Larger power on shaft is obtained by application of off-gas, required for functioning primary air compressor, even with preferable relatively low oxidation temperature.25 cl, 1 dwg Настоящее изобретение относится к cпособу получения ароматической дикарбоновой кислоты, включающему (a) окисление ароматического соединения по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий ароматическую дикарбоновую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий газ, содержащий летучее органическое соединение (VOC); и (d) пропускание, по меньшей мере, части указанного нагретого отходящего газа через турбодетандер, в котором, по меньшей мере, 50 мольных процентов гидрокарбильных соединений, присутствующих в указанном обедненном растворителем отходящем газе, покидающем указанную систему для извлечения растворителя, пропускают через указанный турбодетандер. Изобретение относится также к способу получения терефталевой кислоты, включающему (a) окисление пара-ксилола по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий терефталевую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий га</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD1dwpx9PTz9HNXcPF0dgxy8o-I9PF0VnB09nRRCPcM8QAKB7k6hyh4uDqGgFT5uwGRm667YzBE2s3H0deVh4E1LTGnOJUXSnMzKLi5hjh76KYW5MenFhckJqfmpZbEB4UamZqbG5mYOBsZE6EEAABYK1U</recordid><startdate>20160310</startdate><enddate>20160310</enddate><creator>APSHO TIMOTI ALAN</creator><creator>SHEPPARD RONALD BAFORD</creator><creator>FOGL REJMOND ELBERT</creator><creator>UANDERZ ALAN DZHORDZH</creator><scope>EVB</scope></search><sort><creationdate>20160310</creationdate><title>OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME</title><author>APSHO TIMOTI ALAN ; SHEPPARD RONALD BAFORD ; FOGL REJMOND ELBERT ; UANDERZ ALAN DZHORDZH</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RU2577244C23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rus</language><creationdate>2016</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>APSHO TIMOTI ALAN</creatorcontrib><creatorcontrib>SHEPPARD RONALD BAFORD</creatorcontrib><creatorcontrib>FOGL REJMOND ELBERT</creatorcontrib><creatorcontrib>UANDERZ ALAN DZHORDZH</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>APSHO TIMOTI ALAN</au><au>SHEPPARD RONALD BAFORD</au><au>FOGL REJMOND ELBERT</au><au>UANDERZ ALAN DZHORDZH</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME</title><date>2016-03-10</date><risdate>2016</risdate><abstract>FIELD: chemistry.SUBSTANCE: claimed invention relates to method for obtaining aromatic dicarboxylic acid, which includes (a) oxidation of aromatic compound in at least on oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing aromatic dicarboxylic acid; (b) introduction of at least part of said oxidised off-gas into system for extraction of solvent, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated off-gas, containing volatile organic compound (VOC); and (d) passing, at least, part of said heated off-gas through turboexpander, in which, at least, 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander. The invention also relates to method for obtaining terephthalic acid, which includes (a) oxidation of paraxylene in at least one oxidiser, which results in obtaining oxidised off-gas and oxidised product, containing terephthalic acid; (b) introduction of at least part of said oxidised off-gas into system for solvent extraction, which results in obtaining solvent-depleted off-gas and removed solvent; (c) addition of hot combustion products into said solvent-depleted off-gas, which results in obtaining heated VOC-containing off-gas, and (d) passing of at least part of said heated off-gas through turboexpander, in which at least 50 mole percent of hydrocarbyl compounds, present in said solvent-depleted off-gas, leaving said system for solvent extraction, are passed through said turboexpander, where said hot combustion products are added to said solvent-depleted off-gas in amount, sufficient for supporting said heated off-gas at temperature, which is at least 5°C higher than its local condensation temperature throughout in the process of said heated off-gas passing through said turboexpander, and where temperature of said heated off-gas is, at least, 10°C higher than temperature of said solvent-depleted off-gas, where amount of thermal energy, supplied to said solvent-depleted off-gas by said hot combustion product, is in the range 100-1000 Watt per kilogram of said aromatic compound, supplied into said installation for oxidation.EFFECT: method relates to improved extraction of power on shaft from off-gas of xylene oxidation reaction while bringing cost of sewage water processing to minimum Larger power on shaft is obtained by application of off-gas, required for functioning primary air compressor, even with preferable relatively low oxidation temperature.25 cl, 1 dwg Настоящее изобретение относится к cпособу получения ароматической дикарбоновой кислоты, включающему (a) окисление ароматического соединения по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий ароматическую дикарбоновую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий газ, содержащий летучее органическое соединение (VOC); и (d) пропускание, по меньшей мере, части указанного нагретого отходящего газа через турбодетандер, в котором, по меньшей мере, 50 мольных процентов гидрокарбильных соединений, присутствующих в указанном обедненном растворителем отходящем газе, покидающем указанную систему для извлечения растворителя, пропускают через указанный турбодетандер. Изобретение относится также к способу получения терефталевой кислоты, включающему (a) окисление пара-ксилола по меньшей мере в одном окислителе, посредством чего получают окисленный отходящий газ и окисленный продукт, содержащий терефталевую кислоту; (b) введение по меньшей мере части указанного окисленного отходящего газа в систему для извлечения растворителя, посредством чего получают обедненный растворителем отходящий газ и извлеченный растворитель; (c) добавление горячих продуктов сгорания в указанный обедненный растворителем отходящий газ, посредством чего получают нагретый отходящий га</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng ; rus
recordid cdi_epo_espacenet_RU2577244C2
source esp@cenet
subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title OBTAINING DICARBOXYLIC ACID WITH DIRECT HEATING OF OFF-GAS WITH FLAME
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T09%3A17%3A23IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=APSHO%20TIMOTI%20ALAN&rft.date=2016-03-10&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ERU2577244C2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true