High-dispersion load-type iron-based catalyst for co-liquefaction of coal and biomass and preparation method thereof

高分散负载型铁基煤与生物质共液化催化剂及其制备方法

Abstract

本发明公开了一种高分散负载型铁基煤与生物质共液化催化剂及其制备方法。其中,该方法包括:在20~70℃范围内,将5wt%~50wt%的碱金属多硫化物或多硫化铵溶液加入到粒径为10~150nm的碳黑中,以800~1500r/min的速度搅拌均匀,得到碳黑浆体;在搅拌状态下,按多硫化物化学计量比的含铁离子溶液加入到上述碳黑浆体中,搅拌均匀,制得载有多硫化铁沉淀的碳黑浆体;反应终点的pH值控制在5.0-13.0;将所述载有多硫化铁沉淀的碳黑浆体经经离心过滤或加压过滤制得煤与生物质共液化用高分散负载型铁基催化剂。基于本发明所获取的催化剂催化活性高,制备工艺简单,操作稳定,易于放大且环境友好。
The invention discloses a high-dispersion load-type iron-based catalyst for co-liquefaction of coal and biomass and a preparation method thereof. The method comprises the following steps of: adding 5-50 wt% of alkali metal polysulfide or ammonium polysulfide solution into carbon black with the granularity of 10-150nm in the range of 20-70 DEG C, and evenly stirring at the speed of 800-1500r/min to obtain a carbon black slurry; adding iron-containing ion solution into the carbon black slurry according to the chemical metering ratio of the l polysulfide in the stirring state and evenly stirring the mixture to prepare the carbon black slurry carrying iron polysulfide deposition; controlling a pH value of a reaction end point to be between 5.0 and 13.0; and carrying out centrifugal filtering or pressurizing filtering on the carbon black slurry carrying the iron polysulfide deposition to prepare the high-dispersion load-type iron-based catalyst for co-liquefaction of coal and biomass. The catalyst obtained in the invention has the advantages of high catalysis activity, simple preparation process, stable operation, easy amplification and environment protection.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    CN-1242415-AJanuary 26, 2000中国科学院山西煤炭化学研究所Method for direct liquefaction of coal using FeSOX as presoma of catalyst therefor
    CN-1579623-AFebruary 16, 2005煤炭科学研究总院北京煤化工研究分院一种高分散铁基煤直接液化催化剂的制备方法

NO-Patent Citations (1)

    Title
    JP特开平10-298556A 1998.11.10

Cited By (0)

    Publication numberPublication dateAssigneeTitle