An empirical investigation of the influence of sulfur additives on the catalytic rate of coke deposition and CO formation in the steam cracking of LPG over Incoloy 600 and stainless steel

作者：Rahimi Nazi; Karimzadeh Ramin^*; Jazayeri Seyed Mahdi; Nia Kamran Danaie

来源：Chemical Engineering Journal, 2014, 238: 210-218.

DOI：10.1016/j.cej.2013.09.111

• Steam cracking
• H2S
• DMDS
• LPG feedstock
• Coke rate
• CO

In the current paper, the influence of sulfur additives in the steam cracking of LPG (liquefied petroleum gas), as an industrial feedstock, has been investigated. The effect of hydrogen sulfide (H2S) and dimethyl disulfide (DMDS) on the rate of catalytic coke deposition and CO formation have been examined over Incoloy 600, and stainless steel. The impact of sulfur concentration, temperature, and residence time on the rate of catalytic coke formation over each metal, and the CO formation have been investigated using the central composite design (CCD) technique for designing the experiments. Furthermore, the empirical models of the coke deposition rate and CO formation have been proposed for Incoloy and stainless steel individually, based on the statistical analysis of the experimental results. Then, the performance of DMDS was compared with H2S at some of the selected conditions observed for the H2S addition.

• 出版日期2014-2-15