METHODS AND SYSTEMS FOR PROCESSING PLANTS AND CONVERTING CELLULOSIC RESIDUE TO CRUDE BIO-OILS

Title:

METHODS AND SYSTEMS FOR PROCESSING PLANTS AND CONVERTING CELLULOSIC RESIDUE TO CRUDE BIO-OILS

Document Type and Number:

WIPO Patent Application WO/2013/005104

Kind Code:

A3

Abstract:

A continuous flow wood processing technology for extracting lignin from woody plant material and converting the delignified cellulosic residue to crude bio- oils is provided. Wood is chipped before processing starts and fed into a lignin extractor. The lignin extractor uses ethanol at high temperatures to dissolve the lignin with counter current material contactors. The ethanol containing dissolved lignin is removed from the lignin extractor, the dissolved lignin recovered, the ethanol and residual heat being recycled into the lignin extractor. The delignified cellulosic pulp is removed from the lignin extractor and subjected to a milling operation to convert the pulp into a smooth sludge for entry to a bio-convertor by a super critical water process. The product from this convertor is hydrocarbon sludge with a principal component being a kerogen. In a separate process crude oil is extracted from this sludge and the residue is prepared as a high phosphate Fertilizer.

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Inventors:

BATHURST CHRISTOPHER FRANCIS (NZ)
WATSON JAMES DOUGLAS (NZ)

Application Number:

PCT/IB2012/001412

Publication Date:

June 27, 2013

Filing Date:

July 03, 2012

Export Citation:

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Assignee:

BATHURST CHRISTOPHER FRANCIS (NZ)
WATSON JAMES DOUGLAS (NZ)
LIGNIN POLYMER LTD (NZ)

International Classes:

C10G3/00; C10G1/04; C10L1/02

Domestic Patent References:

WO2009064204A2	2009-05-22
WO2011028788A1	2011-03-10
WO2001070917A1	2001-09-27
WO2011139165A1	2011-11-10
WO2011139166A1	2011-11-10
WO2011139164A1	2011-11-10

Foreign References:

US4764596A	1988-08-16
EP0461463A2	1991-12-18
US4371294A	1983-02-01
JPS62205920A	1987-09-10
US2965125A	1960-12-20

Other References:

MAZAHERI H ET AL: "Sub/supercritical liquefaction of oil palm fruit press fiber for the production of bio-oil: Effect of solvents", BIORESOURCE TECHNOLOGY, ELSEVIER BV, GB, vol. 101, no. 19, 1 October 2010 (2010-10-01), pages 7641 - 7647, XP027089415, ISSN: 0960-8524, [retrieved on 20100526]

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