Effect of catalyst and atmosphere on liquefaction performance of the lignite in optimized two-stage liquefaction process

被引：6

作者：

Qian, Jiashu ^{[1
]}

Wu, Youqing ^{[1
]}

Huang, Sheng ^{[1
]}

Wu, Shiyong ^{[1
]}

Zhao, Runze ^{[1
]}

Gao, Jinsheng ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China

来源：

FUEL | 2022年 / 314卷

基金：

中国国家自然科学基金;

关键词：

Lignite liquefaction; Two-stage liquefaction; Carbon monoxide; Sodium carbonade; Syngas; VICTORIAN BROWN-COAL; GAS SHIFT REACTION; HYDROGEN-TRANSFER; SYNGAS-WATER; SODIUM; NA2CO3; ROLES; MODEL;

D O I：

10.1016/j.fuel.2021.122794

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Since most oxygen containing structures in lignite will break at relatively low temperature and macromolecular structure will pyrolyze at higher temperatures, two-stage liquefaction process is proposed to obtain better liquefaction performance and reduce energy consumption. Different collocations of catalyst and atmosphere were examined and results showed that the total conversion and oil yield could increase with a percentage of 8.12% and 14.04% in maximum. The collocation of CO atmosphere and sodium carbonade had the best adaptability to moisture and a relatively good liquefaction performance. The effect of sodium carbonade on product conversion and feasibility of replacing hydrogen with CO or syngas were discussed. This work is proposing solutions for lignite liquefaction to strengthen the efficient use of low-rank coal resources.

引用

页数：8

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