Indexed by: Journal paper

First Author: LI Xian

Correspondence Author: Kouichi Miura

Journal: Energy & Fuels

Included Journals: EI、SCI

Discipline: Engineering

First-Level Discipline: Power Engineering and Engineering Thermophysics

Document Type: J

Volume: 26

Issue: 11

Page Number: 6897-6904

Date of Publication: 2012-10-24

Abstract: Eight kinds of low-rank coals including lignites and sub-bituminous coals were subjected to a degradative solvent extraction method that treats carbonaceous resources in a non-hydrogen donor at around 350 °C. The low-rank coals were separated into the residue which cannot be extracted by solvent at 350 °C (termed residue), the fraction which can be extracted at 350 °C but precipitates from solvent at room temperature (deposit), the fraction which is solvent soluble even at room temperature (soluble), and liquid fraction mainly consisting of water and gaseous products mainly consisting of CO2.