Taiyuan University of Technology

Shenhua Group Corporation Limited

China Shenhua Coal Liquefaction Corporation

China Shenhua Coal to Liquid & Chemical Co., Ltd.

Geping Shu

Jianwei Huang

Weiren Bao

Yufei Zhu

Liping Chang

Juzhong Gao

Lina Han

Huijun Chen

Qihuang Huo

Jiancheng Wang

Ming Yuan

Shipu Liang

Yaowu Xu

Xiangkun Ren

Xiuzhang Wu

Minli Cui

Jialu Jin

Yuzhuo Zhang

This invention introduces a method of preparing a carbon-based sulfur-loading iron-containing adsorbent for mercury removal, which can solve the problems in the prior art that sulfur-rich heavy organic materials have low-value utilization and the elemental mercury in atmosphere is hard to be efficiently and economically removed by the existing mercury removal agents. A carbon-based sulfur-loading iron-containing adsorbent for mercury removal is prepared in this invention. The adsorbent with a porous structure is prepared in situ by performing steps such as chemical activation of sulfur-rich heavy organic materials that are rich in iron. The adsorbent prepared herein has good mercury removal performance in simulated coal-fired flue gas. This invention not only improves the utilization value of sulfur-rich heavy organic materials, but also prevents SOpollution caused by the combustion of sulfur-rich heavy organic materials and controls mercury pollution in the coal-fired flue gas.

Method of preparing carbon-based sulfur-loading iron-containing adsorbent for mercury removal

Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liquid phase and a gas phase, wherein the liquid phase is fractionated in an atmospheric tower into a light oil fraction and a bottom product; (4) feeding the atmospheric tower bottom product to a vacuum tower to separate into distillate and vacuum residue; (5) mixing the light oil fraction and the distillate to form a mixture, then feeding the mixture to a suspended bed hydrotreating reactor with forced circulation for hydrogenation; (6) fractionating hydrogenation products into oil products and a hydrogen donor recycling solvent. The process can operate long periods, with higher reactor efficiency and utilization factor, increased liquid oil yield and can supply high-quality feedstock for further processing.

Process for direct coal liquefaction

Growing community of inventors

Beijing, China

Geping Shu