Promoters modified FeOOH and their catalytic performances for direct coal liquefaction

XIE Jing; LU Hanfeng; CHEN Yinfei; GAO Shansong; WANG Hongxue

doi:10.11949/j.issn.0438-1157.20151604

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Promoters modified FeOOH and their catalytic performances for direct coal liquefaction

更新时间：2025-12-10

- Promoters modified FeOOH and their catalytic performances for direct coal liquefaction
- CIESC Journal Issue 5, Pages: 1892-1899(2016)
- 作者机构：
  
  1. 浙江工业大学化学工程学院,浙江,杭州,310014
  2. 中国神华煤制油化工有限公司上海研究院, 煤直接液化国家重点工程实验室,上海,201108
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151604
  CLC： Q529.1
- Online First：05 May 2016，
  
  Published：05 May 2016
- 稿件说明：
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XIE Jing, LU Hanfeng, CHEN Yinfei, et al. Promoters modified FeOOH and their catalytic performances for direct coal liquefaction[J]. CIESC Journal, 2016, (5): 1892-1899.
DOI：

XIE Jing, LU Hanfeng, CHEN Yinfei, et al. Promoters modified FeOOH and their catalytic performances for direct coal liquefaction[J]. CIESC Journal, 2016, (5): 1892-1899. DOI： 10.11949/j.issn.0438-1157.20151604.

摘要

采用共沉淀法分别引入Si、Al、La、Ca、Mg、Zr、Cu、Ni和Co 9种助剂元素对FeOOH催化剂改性

借助BET、XRD、SEM手段表征各助剂对催化剂微观结构、晶相和形貌的影响

在0.5 L高压釜内测试各催化剂对神东煤的直接液化催化活性。结果表明

引入Si、Al、Ca、Zr、Ni、Co能改善催化剂比表面积和分散度

分别提高煤液化油收率0.7～2.7个百分点;Ni和Co为最优助剂

Mg没有促进作用

Cu、La降低了油收率。研究表明

Al、Ca、Zr是通过结构支撑改善催化剂的织构性质

促进生成易于转化为活性相的小晶粒g-FeOOH

Ni、Co主要起到电子型助剂作用

通过强化对氢气的活化

促进煤的转化

提高油收率。

Abstract

Modified FeOOH catalysts were prepared by a co-precipitation method using Si

Ni and Co as promoters

respectively. The effects on microstructures

crystalline phase and morphology of the catalysts were characterized by BET

XRD and SEM. Their catalytic performances for the direct liquefaction of Shendong coal were evaluated in a 0.5 L stirring autoclave. The results showed that these promoters (Si

Ni and Co) could improve the dispersion of the catalysts and surface area

and then improve the catalytic performances for direct coal liquefaction. Increasing by 0.7%—2.7% oil yield over the unmodified the catalyst could be obtained. However

Mg showed no effect on catalytic ability

while Cu and La reduced the Oil yield. The result indicated that Si

Ca and Zr as the structure promoters could significantly improve the texture properties of catalysts

resulting in an increase of γ-FeOOH crystalline phase with small size which was beneficial to form active phase (Fe1-xS). Co and Ni as the electronic promoters could activate H2 preferentially to promote liquefaction

leading to the rising in oil yield.

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