Method for removal of toxic waste from timber

A kind of woody plant and biological technology, applied in the direction of separation method, chemical method of making liquid react with liquid, wood processing equipment, etc., can solve problems such as leaving

Inactive Publication Date: 2014-11-05
LIGNIN POLYMER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

One problem with this method is that the wood will leave a caustic solution, which is also a problem

Method used

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  • Method for removal of toxic waste from timber
  • Method for removal of toxic waste from timber
  • Method for removal of toxic waste from timber

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Embodiment Construction

[0092] In the description, certain specific details are set forth in order to provide a thorough understanding of various embodiments of the present disclosure. However, one skilled in the art will understand, after reviewing this disclosure, that various embodiments disclosed herein may be practiced without many of these details. In other cases, certain well-known structures, devices, control system configurations, instrumentation, valves and other equipment and operations, and materials and Compositions have not been described in detail to avoid unnecessarily obscuring the description of the embodiments of the present disclosure.

[0093] It should be understood that the terms "a" and "an" as used herein mean "one or more" of the listed components. Use of alternatives (eg, "or") should be understood to mean either, both, or any combination of the alternatives. As used herein, the terms "include" and "comprise" are used synonymously.

[0094] Various embodiments in this di...

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Abstract

A flow wood processing extracting lignin from woody plant material and converting delignified cellulosic residue to crude bio-oils, that removes toxic preservative chemicals from waste timber, and provides conversion to useful or nontoxic forms. Wood is chipped and fed into a lignin extractor using ethanol at high temperatures to dissolve the lignin with counter current material contactors, heat exchangers, and a computer control system. Most of preservative chemicals likely precipitate out at this stage as a heavy sludge that can be removed. Ethanol containing dissolved lignin is removed from the lignin extractor, the dissolved lignin recovered, the ethanol recycled into the lignin extractor, and residual heat returned to the process. Delignified cellulosic pulp is removed from the lignin extractor and subjected to a milling to convert into a smooth sludge for entry to a bio-convertor by a super critical water process. The residue is prepared as a high phosphate fertilizer.

Description

field of invention [0001] The present disclosure relates to processing techniques for extracting lignin from plant material and converting delignified cellulosic residues into crude bio-oil. It also involves the removal and conversion of toxic preservative chemicals from waste wood into beneficial or non-toxic forms. Background technique [0002] The demand for oil-based transportation fuels and petrochemicals is global. Air, sea and land based transportation fuels and petrochemicals are produced from fossil fuels in the form of oil, coal and natural gas reserves. Petrochemicals are raw materials used in the plastics industry and in the production of resins, adhesives, paints, insulation and many other related products. Phenol and polyols, mainly recovered from fossil fuels, are the main petrochemical feedstocks used in these manufacturing industries. [0003] Recognizing that the large-scale use of fossil fuels has long been a major contributor to the degradation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/04B01D11/04B27K9/00B01J14/00D21C3/20D21C3/22
CPCD21C3/20B01J14/00B27K9/00B01D11/0242C10G1/065D21C3/22C05B17/00Y02P20/145
Inventor 克里斯多夫弗朗西斯·巴瑟斯特
Owner LIGNIN POLYMER
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