Also Called: Tail gas (petroleum), gas oil catalytic cracking absorber [Petroleum gas](Note: A complex combination of hydrocarbons obtained from the distillation of products from the catalytic cracking of gas oil. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C1 through C5.);Tail gas (petroleum), gas oil catalytic cracking absorber;Petroleum gas;[Acomplex combination of hydrocarbons obtained from the distillation of products from the catalytic cracking of gas oil. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C1 through C5.];[A complex combination of hydrocarbons obtained from the distillation of products from the catalytic cracking of gas oil. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C1 through C5.];Petroleum gas (A complex combination of hydro carbons obtained from the distil lation of products from the catalytic cracking of gas oil. It consists predominantly of hydro ca;Petroleum gas (A complex combination of hydro carbons obtained from the distil lation of products from the catalytic cracking of gas oil. It consists predominantly of hydro carbons having carbon numbers predominantly in the range of C1 through C5.)