公开(公告)号：US06447673B1

公开(公告)日：2002-09-10

申请号：US09803781

申请日：2001-03-12

Applicant: Merry Holli Garrett Cordera ,  Charles Allen Comeaux ,  Koenraad Jacques Herrebout ,  Joe David Hunter

Inventor： Merry Holli Garrett Cordera ,  Charles Allen Comeaux ,  Koenraad Jacques Herrebout ,  Joe David Hunter

IPC: C10G4500

CPC classification number: C10G45/08 ,  C10G49/002 ,  C10G65/04 ,  C10G65/12

Abstract: A hydrofining process in which a sulfur- and hydrocarbon-containing processing stream is supplied to a multi-stage hydrotreating reactor incorporating separate stages of cobalt molybdenum catalysts. Hydrogen may be supplied concurrently or counter-currently with the hydrocarbon-containing processing stream. The processing stream is passed into contact with an initial catalyst stage comprising a cobalt molybdenum desulfurization catalyst present in a minor amount of the total composite amount of catalysts within the reactor. Thereafter the processing stream is passed through a subsequent catalyst stage comprising a major amount of cobalt molybdenum hydrocracking catalyst. The effluent stream having a reduced sulfur content is then withdrawn from the hydrotreating reactor. The initial and subsequent catalyst stages are separated by an intervening sector within the reactor containing an inert particulate refractory material, specifically silica particles generally spheroidal in shape.

Abstract translation: 一种加氢精制方法，其中将含硫和烃的处理流供应到包含单独的钴钼催化剂级的多级加氢处理反应器。 可以与含烃处理流同时或逆向提供氢。 使处理流与初始催化剂阶段接触，所述初始催化剂阶段包含在反应器内少量总复合量的催化剂中存在的钴钼脱硫催化剂。 此后，处理流通过包括大量钴钼加氢裂化催化剂的后续催化剂阶段。 然后从加氢处理反应器中取出具有降低的硫含量的流出物流。 初始催化剂阶段和随后的催化剂阶段由反应器内的中间部分分开，其中包含惰性颗粒耐火材料，特别是通常为球形的二氧化硅颗粒。