Compound sulfur removal agent and preparation method and using method thereof

The invention relates to a compound sulfur removal agent used for petroleum extraction, crude oil processing, gasoline and diesel sulfur removal. The compound sulfur removal agent is prepared from the following raw materials: diethanol amine, triethanolamine, ethanediamine, N,N-=methylethanolamine, ammonia water, diisopropylamine, N,N dimethyl-1,3-propane diamine, cyclo-aziridine and hexadecyl trimethyl ammonium chloride. The invention discloses a preparation method and a using method of the compound sulfur removal agent. The performance of the compound sulfur removal agent is obviously superior to that of an existing conventional sulfur removal agent, the compound sulfur removal agent is high in adaptability and is particularly used for a crude oil extraction and processing process, and the sulfur removal effect can be improved.