PROCESS FOR PRODUCING PULP AND AT LEAST ONE ORGANIC LIQUID OR LIQUEFIABLE MATERIAL OF VALUE WITH OFFGAS RECYCLING

The present invention relates to an integrated process for producing pulp and at least one organic liquid or liquefiable material of value, wherein a) a lignocellulose-comprising starting material is provided and subjected to digestion with an aqueous-alkaline treatment medium, b) a cellulose-enrich...

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Bibliographic Details
Main Authors PANTOUFLAS EMMANOUIL, BITTERLICH STEFAN, DEUERLEIN STEPHAN, PROCHAZKA ROMAN, KLINGLER DIRK, MACHHAMMER OTTO
Format Patent
LanguageEnglish
Published 10.11.2011
Subjects
APPARATUS THEREFOR
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
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Summary:The present invention relates to an integrated process for producing pulp and at least one organic liquid or liquefiable material of value, wherein a) a lignocellulose-comprising starting material is provided and subjected to digestion with an aqueous-alkaline treatment medium, b) a cellulose-enriched fraction and a cellulose-depleted black liquor are isolated from the digested material, c) the black liquor is subjected to a treatment to give at least one organic liquid or liquefiable material of value and at least one offgas stream, d) at least one of the offgas streams obtained in step c) is recycled to the process for producing pulp and utilized.
Bibliography:Application Number: US201113101374