公开(公告)号：US06676830B1

公开(公告)日：2004-01-13

申请号：US09953801

申请日：2001-09-17

申请人： Montri Vichailak ,  Bertrand Klussman ,  Mario J. Maraschino

发明人： Montri Vichailak ,  Bertrand Klussman ,  Mario J. Maraschino

IPC分类号： C10G4500

CPC分类号： C10G65/16 ,  C10G2300/4087 ,  C10G2400/02

摘要： A process for the desulfurization of a light boiling range (C5-350° F.) fluid catalytically cracked naphtha, which may be first subjected to a thioetherification to react the diolefins with mercaptans contained in it to form sulfides, is fed to a high pressure (>250 psig) catalytic distillation hydrodesulfurization step along with hydrogen under conditions to react most of the organic sulfur compounds, including sulfides from the thioetherification to form H2S. The H2S and a light product stream (C5's and C6's) are removed as overheads. The bottoms from the catalytic distillation hydrodesulfurization step is fractionated and the bottoms from the fractionation contacted with hydrogen in a straight pass hydrogenation step in the presence of a hydrodesulfurization catalyst at pressure of >250 and temperature >400° F. to further reduce the sulfur content.

摘要翻译： 将沸点范围（C5-350°F）的液体催化裂化石脑油脱硫的方法，可以首先进行硫醚化以使二烯烃与其中所含的硫醇反应生成硫化物， （> 250psig）催化蒸馏加氢脱硫步骤以及氢气条件下反应大部分有机硫化合物，包括来自硫醚化的硫化物形成H 2 S。 H 2 S和轻质产物流（C5和C6）作为塔顶馏出物除去。 在加氢脱硫催化剂存在下，在压力> 250和温度> 400°F的条件下，从直馏过程氢化步骤中分馏出来的催化蒸馏加氢脱硫步骤的底部馏分与氢气接触，以进一步降低硫含量 。

公开(公告)号：US06416658B1

公开(公告)日：2002-07-09

申请号：US09691983

申请日：2000-10-19

申请人： Mario J. Maraschino ,  Montri Vichailak ,  Bertrand Klussman ,  Harjeet Virdi

发明人： Mario J. Maraschino ,  Montri Vichailak ,  Bertrand Klussman ,  Harjeet Virdi

IPC分类号： C10G4502

CPC分类号： B01D3/141 ,  C10G45/02 ,  C10G65/04 ,  C10G2300/4087

摘要： A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into a light boiling range naphtha and a heavy boiling range naphtha, which have been treated to covert mercaptans in the fractions to H2S, which is separated with and separated from the light naphtha wherein the improvement is a further hydrodesulfurization by contacting the light boiling range naphtha with hydrogen in countercurrent flow in a fixed bed of hydrodesulfurization catalyst to remove recombinant mercaptans which are formed by the reverse reaction of H2S with olefins in the naphtha during the initial hydrodesulfurization.

摘要翻译： 一种用于同时分馏和加氢处理全程石脑油流的方法。 将全沸程石脑油流同时进行加氢脱硫并分解成轻馏分石脑油和重沸点石脑油，这些石脑油和重沸点石脑油已被处理以使馏分中的硫醇转化为与轻石脑油分离并与其分离的H 2 S. 通过在加氢脱硫催化剂的固定床中使逆向流动中的轻沸点石脑油与氢气接触来除去在初始加氢脱硫期间通过H 2 S与石脑油中的烯烃反应形成的重组硫醇，进一步加氢脱硫。