Abstract: This specification discloses a method to convert a lignin biomass feedstream to a converted lignin stream comprising aromatic compounds. The process comprises combining a lignin biomass feedstream comprising lignin, at least one solvent and at least one catalyst in a reaction vessel. Preferably the ratio of moles of catalyst to moles of lignin is in the range of between 4:1 and 15:1. The lignin biomass feedstream is then deoxygenated to a converted lignin stream at a deoxygenation temperature and a deoxygenation pressure for a deoxygenation time.
Abstract: This specification discloses a complete method to manufacture polyester articles from freshly harvested ligno-cellulosic biomass. The process steps include pretreating the biomass and the converting the lignin to one of several possible organic steams by deoxygenating and dehydrogenating the lignin in the presence of a Raney Nickel catalyst, separating the organics, and then processing the organics into polyester feedstocks and converting those feedstocks to polyester.
Abstract: This specification discloses an operational continuous process to convert lignin as found in ligno-cellulosic biomass before or after converting at least some of the carbohydrates. The continuous process has been demonstrated to create a slurry comprised of lignin, raise the slurry comprised of lignin to ultra-high pressure, deoxygenate the lignin in a lignin conversion reactor over a catalyst which is not a fixed bed without producing char. The continuous process further utilizes nanoparticles of a crystalline metal oxide. The conversion products of the carbohydrates or lignin can be further processed into polyester intermediates for use in polyester preforms and bottles.
Type:
Application
Filed:
July 9, 2013
Publication date:
October 22, 2015
Applicant:
BIOCHEMTEX S.P.A.
Inventors:
Krishna SHARMA, Aaron MURRAY, Steven RYBA, Dan GASTALDO, Guliz Arf ELLIOTT
Abstract: This specification discloses an operational continuous process to convert lignin as found in ligno-cellulosic biomass before or after converting at least some of the carbohydrates. The continuous process has been demonstrated to create a slurry comprised of lignin, raise the slurry comprised of lignin to ultra-high pressure, deoxygenate the lignin in a lignin conversion reactor over a catalyst which is not a fixed bed without producing char. The conversion products of the carbohydrates or lignin can be further processed into polyester intermediates for use in polyester preforms and bottles.
Type:
Grant
Filed:
February 24, 2013
Date of Patent:
October 20, 2015
Assignee:
Biochemtex S.p.A.
Inventors:
Steven Ryba, Aaron Murray, Guliz Arf Elliott, Dan Gastaldo
Abstract: This specification discloses an operational continuous process to convert lignin as found in ligno-cellulosic biomass before or after converting at least some of the carbohydrates. The continuous process has been demonstrated to create a slurry comprised of lignin, raise the slurry comprised of lignin to ultra-high pressure, deoxygenate the lignin in a lignin conversion reactor over a catalyst which is not a fixed bed without producing char. The conversion products of the carbohydrates or lignin can be further processed into polyester intermediates for use in polyester preforms and bottles.
Type:
Grant
Filed:
February 24, 2013
Date of Patent:
September 22, 2015
Assignee:
Biochemtex, S.p.A.
Inventors:
Dan Gastaldo, Steven Ryba, Aaron Murray, Guliz Arf Elliott
Abstract: It is disclosed a non-naturally occurring microbial organism comprising at least one exogenous nucleic acid encoding an enzyme, or a portion thereof, selected from the group of ammonia lyase. Preferably, the enzyme is PAL3, and the at least one exogenous nucleic acid is obtained from Arabidopsis thaliana. The non-naturally occurring microbial organism has an increased resistance to biochemical stress compared to the starting microbial organism, as induced for instance by oxidative stress or organic acid stress. Preferably, the non-naturally occurring microbial organism is a yeast and it may be used for fermenting a carbon source obtained from a ligno-cellulosic feedstock.
Abstract: A process produces at least a first enzyme from a host cell, wherein the first enzyme is capable of hydrolyzing a first pre-treated ligno-cellulosic biomass. The process comprises the step of cultivating the host cell to produce at least the first enzyme for a cultivation time, wherein the cultivation of the host cell occurs in a sugar depleted cultivation environment comprising the host cell, water and a solid composition comprising a complex sugar of the solid composition and a lignin of the solid composition.
Type:
Application
Filed:
June 20, 2013
Publication date:
June 25, 2015
Applicant:
Biochemtex S.p.A
Inventors:
Stefano Paravisi, Laura Volpati, Chiara Giorcelli, Elisa Raccagni, Piero Ottonello, Francesco Cherchi
Abstract: This specification discloses an operational continuous process to convert lignin as found in ligno-cellulosic biomass before or after converting at least some of the carbohydrates. The continuous process has been demonstrated to create a slurry comprised of lignin, raise the slurry comprised of lignin to ultra-high pressure, deoxygenate the lignin in a lignin conversion reactor over a catalyst which is not a fixed bed without producing char. The conversion products of the carbohydrates or lignin can be further processed into polyester intermediates for use in polyester preforms and bottles.
Type:
Grant
Filed:
February 24, 2013
Date of Patent:
May 19, 2015
Assignee:
Biochemtex S.p.A.
Inventors:
Steven Ryba, Aaron Murray, Guliz Arf Elliott, Dan Gastaldo
Abstract: This specification describes a process of producing a monomeric sugar stream, with little or no acid addition, from an oligomeric sugar solution using the intrinsic features of the mildly pre-treated vegetable or ligno-cellulosic biomass, namely the presence of naturally occurring salts. This is accomplished by lowering the pH of the oligomer sugar solution with little or no addition of an acid and then exposing the biomass with the lowered pH to an elevated temperature greater than 80° C. for a time sufficient to hydrolyze the components of the biomass.