费托法
催化作用
选择性
衍射仪
化学
产品分销
扫描电子显微镜
化学工程
碳氢化合物
傅里叶变换红外光谱
透射电子显微镜
合成气
有机化学
材料科学
工程类
晶体结构
复合材料
作者
Zhiping Chen,Yongle Meng,Jing Lu,Wenwu Zhou,Zhiyuan Yang,Anning Zhou
标识
DOI:10.1002/slct.202202903
摘要
Abstract Hydrophobic modification of Fischer‐Tropsch synthesis catalyst can inhibits water gas shift(WGS) reaction and regulates product distribution. Herein, a series of hydrophobic Fe 2 O 3 @SiO 2 ‐xHDTMS (Hexadecyltrimethoxysilane, HDTMS. x represents the amount of HDTMS.) catalysts with various HDTMS content were synthesized for Fischer‐Tropsch synthesis to light hydrocarbons. The Fe 2 O 3 @SiO 2 ‐xHDTMS catalysts were characterized by X‐ray diffractometer(XRD), scanning electron microscope(SEM), transmission electron microscope(TEM), fourier transform infrared spectrometer(FT‐IR) and contact angle measuring instrument(CAMI). After HDTMS modification, the hydrophobicity of the catalyst is significantly improved, the selectivity of the catalyst to CO 2 is significantly reduced due to the inhibition of WGS reaction, and the selectivity of hydrocarbon products is significantly improved. This indicates that HDTMS is very suitable as a silanizer for hydrophobic modification of Fischer‐Tropsch synthesis catalysts. With the increase of HDTMS content, the hydrophobicity of the catalyst always increased, but the selectivity of CO 2 in Fischer‐Tropsch synthesis products decreased first and then increased, and the selectivity of hydrocarbons increased first and then decreased, indicating that the content of HDTMS has a significant impact on the hydrophobicity and catalytic performance of the catalyst.
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