Title:
METHOD FOR PREPARING ASHLESS COAL BY MEANS OF CO-THERMAL DISSOLUTION OF BIOMASS AND LOW-RANK COAL
Document Type and Number:
WIPO Patent Application WO/2019/090455
Kind Code:
A1
Abstract:
Disclosed is a method for preparing an ashless coal by means of the co-thermal dissolution of biomass and a low-rank coal, the method comprising the following steps: 1) using biomass and a low-rank coal as raw materials, and mixing same before carrying out thermal dissolution using an aromatic hydrocarbon as a solvent; and 2) after thermal dissolution, extracting same while hot to obtain an extraction liquid, and after cooling, separating and removing the solvent from the extraction liquid so as to obtain the ashless coal. The raw materials used in the present invention are low-rank coals and biomasses, which extends the range of the raw materials used for preparing the ashless coal, can effectively reduce the costs of the raw materials, and has an industrial prospect for realizing the large-scale preparation of the ashless coal.
Inventors:
LI XIAN (CN)
Application Number:
PCT/CN2017/109652
Publication Date:
May 16, 2019
Filing Date:
November 07, 2017
Export Citation:
Assignee:
MOKREE ENVIRONMENTAL TECH SUZHOU CO LTD (CN)
International Classes:
C10L5/44
Foreign References:
| CN104011189A | 2014-08-27 | |||
| CN104673346A | 2015-06-03 | |||
| KR20170007889A | 2017-01-23 | |||
| JP2013076070A | 2013-04-25 | |||
| CN105482844A | 2016-04-13 | |||
| CN105419902A | 2016-03-23 | |||
| CN102191095A | 2011-09-21 | |||
| CN106929049A | 2017-07-07 | |||
| CN102337167A | 2012-02-01 |
Attorney, Agent or Firm:
CHINA FARFIR INTELLECTUAL PROPERTY (CN)
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