A method for extracting hydrolysate, a batch cooking system and a hydrolysate extracting arrangement

A method for extracting hydrolysate in a batch cooking process for producing pulp, said method comprising the steps of:- providing lignocellulose raw material to a batch cooking vessel;- performing acid hydrolysis of the lignocellulose raw material in the batch cooking vessel;displacing a first part...

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Hauptverfasser:	LAMMI, Lari, KARVONEN, Jouni, MINNAAR, Susanna, LANDMAN, Hunphrey, COETZEE, Berdine, Wauts, Johann
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER-MAKING POLYSACCHARIDES PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator	LAMMI, Lari KARVONEN, Jouni MINNAAR, Susanna LANDMAN, Hunphrey COETZEE, Berdine Wauts, Johann
description	A method for extracting hydrolysate in a batch cooking process for producing pulp, said method comprising the steps of:- providing lignocellulose raw material to a batch cooking vessel;- performing acid hydrolysis of the lignocellulose raw material in the batch cooking vessel;displacing a first part of a hydrolysate from the batch cooking vessel by adding to the batch cooking vessel at least one first displacement liquid comprising recycled hydrolysate from a hydrolysate recirculation tank, wherein said recycled hydrolysate has been transferred to the hydrolysate recirculation tank from the batch cooking vessel during a previous batch cooking process;receiving the first part of the hydrolysate in at least one hydrolysate extraction tank;displacing a second part of the hydrolysate from the batch cooking vessel by adding to the batch cooking vessel at least one second displacement liquid comprising alkaline neutralization liquor; andreceiving the second part of the hydrolysate in a hydrolysate recirculation tank.
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andreceiving the second part of the hydrolysate in a hydrolysate recirculation tank.</abstract><oa>free_for_read</oa></addata></record>
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subjects	APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER-MAKING POLYSACCHARIDES PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
title	A method for extracting hydrolysate, a batch cooking system and a hydrolysate extracting arrangement
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