首页>
外国专利>
Mild hydrodesulfurization integrated gas phase catalytic oxidation to produce fuels with ultra-low levels of organic sulfur compounds
Mild hydrodesulfurization integrated gas phase catalytic oxidation to produce fuels with ultra-low levels of organic sulfur compounds
展开▼
机译:温和的加氢脱硫综合气相催化氧化制得的燃料中有机硫化合物的含量超低
展开▼
页面导航
摘要
著录项
相似文献
摘要
Desulfurization of hydrocarbon feeds is achieved by first contacting the entire feed with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions; a flashing column downstream of the hydrodesulfurization reaction zone fractionates the effluent to obtain a first fraction which contains refractory organosulfur compounds and a second fraction that is substantially free of organosulfur compounds, since the organosulfur compounds boiling in the range of this fraction were the labile organosulfur compounds which were initially removed by mild hydrodesulfurization. The first fraction is contacted with a gaseous oxidizing agent over an oxidation catalyst having a formula CuxZn1-xAl2O4 in a gas phase catalytic oxidation reaction zone to convert the refractory organosulfur compounds to SOx and low sulfur hydrocarbons. The by-product SOx is subsequently removed, producing a stream containing a reduced level of organosulfur compounds.
展开▼