PRODUCTION OF ETHANOL WITH REDUCED CONTAMINANTS IN A CELLULOSIC BIOMASS BASED PROCESS WITH RECTIFICATION COLUMN AND MOLECULAR SIEVES
Processes for producing ethanol from fermentation systems employing cellulosic feedstocks are provided, where contaminants prevalent from biomass hydrolysate fermentation are managed. The management of contaminants allows recycle of process water between the fermenter vent scrubber and rectification...
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| creator | PARTEN, WILLIAM, D |
| description | Processes for producing ethanol from fermentation systems employing cellulosic feedstocks are provided, where contaminants prevalent from biomass hydrolysate fermentation are managed. The management of contaminants allows recycle of process water between the fermenter vent scrubber and rectification column, thereby removing the need for fresh water to the scrubber. After fermentation (101), the stream is sent to a beer column (103), a rectification column (111), a molecular sieve (113) and then a last product distillation column (118).
L'invention concerne des procédés de production d'éthanol par des systèmes de fermentation employant des charges d'alimentation cellulosiques, dans lesquels les contaminants prévalents issus de la fermentation d'hydrolysat de biomasse sont gérés. La gestion des contaminants permet le recyclage de l'eau de procédé entre l'épurateur d'évent de fermenteur et la colonne de rectification, ce qui rend inutile l'apport d'eau douce à l'épurateur. Après la fermentation (10), le courant est envoyé dans une colonne de bière (103), une colonne de rectification (111), un tamis moléculaire (113) et ensuite dans une dernière colonne de distillation (118). |
| format | Patent |
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L'invention concerne des procédés de production d'éthanol par des systèmes de fermentation employant des charges d'alimentation cellulosiques, dans lesquels les contaminants prévalents issus de la fermentation d'hydrolysat de biomasse sont gérés. La gestion des contaminants permet le recyclage de l'eau de procédé entre l'épurateur d'évent de fermenteur et la colonne de rectification, ce qui rend inutile l'apport d'eau douce à l'épurateur. Après la fermentation (10), le courant est envoyé dans une colonne de bière (103), une colonne de rectification (111), un tamis moléculaire (113) et ensuite dans une dernière colonne de distillation (118).</description><language>eng ; fre</language><subject>PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING</subject><creationdate>2015</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=20150402&DB=EPODOC&CC=WO&NR=2015048213A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150402&DB=EPODOC&CC=WO&NR=2015048213A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PARTEN, WILLIAM, D</creatorcontrib><title>PRODUCTION OF ETHANOL WITH REDUCED CONTAMINANTS IN A CELLULOSIC BIOMASS BASED PROCESS WITH RECTIFICATION COLUMN AND MOLECULAR SIEVES</title><description>Processes for producing ethanol from fermentation systems employing cellulosic feedstocks are provided, where contaminants prevalent from biomass hydrolysate fermentation are managed. The management of contaminants allows recycle of process water between the fermenter vent scrubber and rectification column, thereby removing the need for fresh water to the scrubber. After fermentation (101), the stream is sent to a beer column (103), a rectification column (111), a molecular sieve (113) and then a last product distillation column (118).
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L'invention concerne des procédés de production d'éthanol par des systèmes de fermentation employant des charges d'alimentation cellulosiques, dans lesquels les contaminants prévalents issus de la fermentation d'hydrolysat de biomasse sont gérés. La gestion des contaminants permet le recyclage de l'eau de procédé entre l'épurateur d'évent de fermenteur et la colonne de rectification, ce qui rend inutile l'apport d'eau douce à l'épurateur. Après la fermentation (10), le courant est envoyé dans une colonne de bière (103), une colonne de rectification (111), un tamis moléculaire (113) et ensuite dans une dernière colonne de distillation (118).</abstract><oa>free_for_read</oa></addata></record> |
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| title | PRODUCTION OF ETHANOL WITH REDUCED CONTAMINANTS IN A CELLULOSIC BIOMASS BASED PROCESS WITH RECTIFICATION COLUMN AND MOLECULAR SIEVES |
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