Studies on product distribution of alkali promoted iron catalyst in Fischer-Tropsch synthesis

• Published in: Journal of natural gas chemistry 2010, Vol.19 (1), p.31-34
• Main Authors: Pour, Ali Nakhaei, Zare, Masoud, Zamani, Yahya
• Format: Article
• Language: English
• Subjects: amp; Applied sciences; Basicity; Carbon monoxide; Catalysts; chain length distribution; Energy; Exact sciences and technology; Fe catalyst; Fischer-Tropsch synthesis; Fuel processing. Carbochemistry and petrochemistry; Fuels; Gas processing; H2/CO; Iron; Magnesium; Natural gas; Representations; Synthesis; 产品分布; 产物分布; 合成催化剂; 固定床反应器; 表面碱性
• ISSN: 1003-9953
• DOI: 10.1016/S1003-9953(09)60025-6

The dependencies of hydrocarbon product distributions of alkali promoted iron catalyst in Fischer-Tropsch synthesis have been studied. The concept of two superimposed Anderson-Schulz-Flory distributions has been applied for the representation of the effects of Mg, La and Ca promoters on product distributions. The FTS performance of the catalysts was tested in a fixed bed reactor under the conditions 563 K, 1.7 MPa, H2/CO = 1 and space velocities 4.86 and 13.28 nl·h^-1·gFe^-1. The results indicate that appropriate amounts of these promoters enhance the break in ASF distributions in the order Ca 〉 Mg 〉 La because of the rising of the catalyst surface basicity.