METHOD AND DEVICE FOR THE SEPARATION OF FOREIGN GASES FROM A REDUCING USEFUL GAS BY PRESSURE SWING ADSORPTION
A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation...
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| creator | WYSCHOFSKY MICHAEL LIU VINCENT VON TROTHA THILO |
| description | A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. Also disclosed is a device for running this process. |
| format | Patent |
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The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. Also disclosed is a device for running this process.</description><language>eng</language><subject>CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG] ; CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; COMPOUNDS THEREOF ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TRANSPORTING</subject><creationdate>2011</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&date=20110727&DB=EPODOC&CC=ZA&NR=201005950B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20110727&DB=EPODOC&CC=ZA&NR=201005950B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WYSCHOFSKY MICHAEL</creatorcontrib><creatorcontrib>LIU VINCENT</creatorcontrib><creatorcontrib>VON TROTHA THILO</creatorcontrib><title>METHOD AND DEVICE FOR THE SEPARATION OF FOREIGN GASES FROM A REDUCING USEFUL GAS BY PRESSURE SWING ADSORPTION</title><description>A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. 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The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. Also disclosed is a device for running this process.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG] CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS THEREOF GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING |
| title | METHOD AND DEVICE FOR THE SEPARATION OF FOREIGN GASES FROM A REDUCING USEFUL GAS BY PRESSURE SWING ADSORPTION |
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