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Process for the hydroisomerization of Fischer-Tropsch wax to produce lubricating oil (OP-3403)
Process for the hydroisomerization of Fischer-Tropsch wax to produce lubricating oil (OP-3403)
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机译:费托蜡加氢异构化生产润滑油的方法(OP-3403)
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摘要
Fischer-Tropsch wax is converted to a lubricating oil having a high viscosity index and a low pour point by first hydrotreating (R-1) the wax under relatively severe conditions and thereafter hydroisomerizing (R-2) the hydrotreated wax in the presence of hydrogen on a specified type of fluorided Group VIII metal-on-alumina catalyst. The hydroisomerate is then dewaxed (D-1) to produced a premium lubricating oil base stock. The preferred hydroisomerization catalyst is a fluorided platinum-on-alumina catalyst containing relatively low surface fluoride, a high concentration of aluminum fluoride hydroxide hydrate and a low nitrogen concentration.
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