Desulfurization of Brown Coal in Water under Supercritical Conditions

被引：1
|
作者：
Savitsky, D. P. [1 ]
Stanishevskii, Ya. M. [1 ]
Gizha, S. S. [2 ]
Tur'yanskii, A. G. [2 ]
机构：
[1] Peoples Friendship Univ Russia, Inst Biochem Technol & Nanotechnol, Moscow 117198, Russia
[2] Russian Acad Sci, Lebedev Phys Inst, Moscow 117924, Russia
来源：
SOLID FUEL CHEMISTRY | 2018年 / 52卷 / 03期
关键词：
brown coal; desulfurization; supercritical fluid; SULFUR TRANSFORMATION; OXIDATION; REMOVAL;
D O I：
10.3103/S0361521918030114
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A method for the desulfurization of brown coal by treatment in supercritical water (T = 673.15 K, P = 30 MPa) with the subsequent deposition of gaseous sulfur compounds on a copper substrate was proposed. The products were refined fuel with a low heat value of 24 MJ/kg and Cu2S films with a thickness of 0.1 mm. The semiconductor Cu2S films can be used for the preparation of thin-film photoelectric energy converters. The greatest degree of the removal of sulfur from the brown coal was observed after an hour. The main sulfur-containing gas formed upon the autoclave treatment of brown coal in supercritical water was H2S.
引用
收藏
页码：143 / 152
页数：10
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