Simulation of hydrocarbons pyrolysis in a fast-mixing reactor

Modeling Study of High Temperature Pyrolysis of Natural Gas

“…One-step partial oxidation of methane has been extensively investigated, both experimentally and numerically in batch reactors, ,, flow reactors, ,− and premixed flames. − However, limited studies are present in the literature for the two-step process. High temperature pyrolysis of hydrocarbons was investigated by Ktalkherman et al, − where hydrogen and air were combusted in the first reaction zone, followed by addition of propane, LPG, or naphtha or their mixtures in the second reaction zone, to produce ethylene. The yield of ethylene was significantly higher when compared to the conventional steam cracking and pyrolysis methods. , Recently, Zhang et al numerically investigated the two-step process using coke oven gas as a primary feed and methane as a secondary feed; they optimized the design of a jet-in-cross-flow reactor to maximize the acetylene production.…”

“…High temperature pyrolysis of hydrocarbons was investigated by Ktalkherman et al, − where hydrogen and air were combusted in the first reaction zone, followed by addition of propane, LPG, or naphtha or their mixtures in the second reaction zone, to produce ethylene. The yield of ethylene was significantly higher when compared to the conventional steam cracking and pyrolysis methods. , Recently, Zhang et al numerically investigated the two-step process using coke oven gas as a primary feed and methane as a secondary feed; they optimized the design of a jet-in-cross-flow reactor to maximize the acetylene production. Zhang et al investigated the effect of addition of wet gas consisting of ethane and propane on the methane partial oxidation process and observed an increase in acetylene and carbon monoxide production.…”

“…18−21 However, limited studies are present in the literature for the two-step process. High temperature pyrolysis of hydrocarbons was investigated by Ktalkherman et al, 22−25 where hydrogen and air were combusted in the first reaction zone, followed by addition of propane, 22 LPG, 23 or naphtha 24 or their mixtures 25 in the second reaction zone, to produce ethylene. The yield of ethylene was significantly higher when compared to the conventional steam cracking 22 and pyrolysis methods.…”

“…The yield of ethylene was significantly higher when compared to the conventional steam cracking 22 and pyrolysis methods. 24,25 Recently, Zhang et al 10 numerically investigated the two-step process using coke oven gas as a primary feed and methane as a secondary feed; they optimized the design of a jet-in-cross-flow reactor to maximize the acetylene production. Zhang et al 26 investigated the effect of addition of wet gas consisting of ethane and propane on the methane partial oxidation process and observed an increase in acetylene and carbon monoxide production.…”