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Effect of the Type of the Cobalt-Containing Component of a Composite Catalyst on the One-Stage Synthesis of Liquid Hydrocarbons from СО and Н 2
Catalysis in Industry ( IF 0.7 ) Pub Date : 2020-01-13 , DOI: 10.1134/s2070050419040093
R. E. Yakovenko , I. N. Zubkov , G. B. Narochnyi , S. V. Nekroenko , A. P. Savost’yanov

Abstract

The effect of the type of the cobalt-containing component (Со-Al2O3/SiO2, Co-Re/Al2O3, and Co-Re/TiO2) of a composite catalyst on the combined synthesis and hydroconversion of hydrocarbons by the Fischer–Tropsch process are investigated. The catalytic properties of catalyst samples are studied in a flow reactor with a fixed catalyst layer at 2 MPa and GHSV of 1000 h–1 within a the temperature range of 240–280°С for 40–90 h of continuous operation. The highest values of output and selectivity to C5+ hydrocarbons are obtained for composite catalyst Со-Al2O3/SiO2(35%)/ZSM-5(30%)/Al2O3(30%) at a temperature of 240°C and are 106 kg/(\({\text{m}}_{{{\text{cat}}}}^{3}\) h) and 67.1%, respectively. It is shown that using Co-Re/Al2O3 instead of Со-Al2O3/SiO2 catalyst produces comparable values of catalytic activity, but considerably fewer unsaturated hydrocarbons are found in the products of synthesis. Using Co-Re/TiO2 catalyst and raising the temperature (to 280°С) shifts the molecular weight distribution of the products of synthesis toward the formation of a gasoline fraction. It is found that the rate of catalyst deactivation grows in the order Со-Al2O3/SiO2 > Co-Re/Al2O3 > Co-Re/TiO2.


中文翻译:

复合催化剂中含钴组分的类型对СО和Н2一步合成液态烃的影响

摘要

含钴成分的种类的效果(Со-Al系2 ö 3 /的SiO 2,钴-铼/ Al的2 ö 3和Co-Re的/二氧化钛2所组合的合成和加氢转化的复合催化剂的)费-托法研究了碳氢化合物。在具有2 MPa的固定催化剂层和GHSV为1000 h –1的流动反应器中,在240–280°С的温度范围内连续运行40–90 h时,研究了催化剂样品的催化性能。输出和选择性C的最高值5+为复合催化剂Со-A1中获得的烃2 ö 3 /二氧化硅2(35%)/ ZSM-5(30%)/ Al 2 O 3(30%)在240°C的温度下为106 kg /(\({\ text {m}} _ {{{\ text { cat}}}} ^ {3} \) h)和67.1%。结果表明,以Co-Re的/ Al的2 ö 3代替Со-Al系2 ö 3 /二氧化硅2催化剂产生的催化活性的比较的值,但相当少的不饱和烃在合成的产品中发现。使用Co-Re / TiO 2催化剂并提高温度(至280°С)会使合成产物的分子量分布向汽油馏分的方向转移。据发现,催化剂的失活速率生长在顺序Со-Al系2O 3 / SiO 2 > Co-Re / Al 2 O 3 > Co-Re / TiO 2
更新日期:2020-01-13
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