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    Process for the selective hydrodesulfurization of naphtha streams
    3.
    发明授权
    Process for the selective hydrodesulfurization of naphtha streams 有权
    石脑油流选择性加氢脱硫工艺

    公开(公告)号：US07754068B2

    公开(公告)日：2010-07-13

    申请号：US11602212

    申请日：2006-11-21

    申请人： Rafael Menegassi De Almeida ,  Jefferson Roberto Gomes ,  Guilherme Luis Monteiro De Souza ,  Joy Leslie, legal representative ,  Xiaondong Hu

    发明人： Rafael Menegassi De Almeida ,  Jefferson Roberto Gomes ,  Guilherme Luis Monteiro De Souza ,  Xiaondong Hu

    IPC分类号： C10G45/72

    CPC分类号： C10G65/04 ,  C10G45/08 ,  C10G2400/02

    摘要： A process for the selective hydrodesulfurization of naphtha streams containing olefins and organosulfur compounds that minimizes olefin hydrogenation and results in a reduced sulfur content product. This is attained by two-stage hydrodesulfurization and H2S removal from the first stage effluent, with the first reaction stage catalyst being a more active HDS catalyst than the second reaction stage catalyst. Hydrogen and a non-reactive compound are fed to the first stage, with the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 1.0. H2S at the reactor inlet is limited to not more than 0.1% by volume. Hydrogen and a non-reactive compound are fed to the second reaction stage, the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 0.7. H2S at the reactor inlet is limited to not more than 0.05% by volume.

    摘要翻译： 用于使含有烯烃和有机硫化合物的石脑油流的选择性加氢脱硫的方法，其使烯烃氢化最小化并导致降低的硫含量产物。 这通过从第一阶段流出物中的两步加氢脱硫和H 2 S脱除得到，第一反应阶段催化剂是比第二反应阶段催化剂更高活性的HDS催化剂。 将氢气和非反应性化合物进料到第一阶段，H2和非反应性化合物的混合物中的H 2摩尔分数为0.2-1.0。 反应器入口处的H2S被限制在不超过0.1体积％。 将氢气和非反应性化合物进料到第二反应阶段，H 2和非反应性化合物的混合物中的H 2摩尔分数为0.2至0.7。 反应器入口处的H 2 S限制在不超过0.05体积％。

    Process for the selective hydrodesulfurization of olefinic naphtha streams
    4.
    发明授权
    Process for the selective hydrodesulfurization of olefinic naphtha streams 有权
    烯烃石脑油流的选择性加氢脱硫方法

    公开(公告)号：US07361265B2

    公开(公告)日：2008-04-22

    申请号：US10385432

    申请日：2003-03-12

    申请人： Rafael M. de Almeida ,  Jefferson Roberto Gomes

    发明人： Rafael M. de Almeida ,  Jefferson Roberto Gomes

    IPC分类号： C10G45/00

    CPC分类号： C10G45/08 ,  C10G45/02 ,  C10G2400/02

    摘要： A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process makes use of non-reactive compounds such as N2, CH4, C2H6, C3H8, C4H10, Group VIII noble gases as well as admixtures of same in any amount, in gas or vapor phase.

    摘要翻译： 描述了裂化烯烃流的加氢脱硫的方法，该方法旨在降低硫含量，同时使所述烯烃的氢化程度最小化。 为了稀释所添加的反应氢，该方法使用非反应性化合物，例如N 2，CH 4，C 2 H C 3，C 3 H 8，C 4 H 10，第VIII族贵金属 气体以及气体或气相中任何量的相同的混合物。

    Process for selective hydrodesulfurization of naphtha
    10.
    发明授权
    Process for selective hydrodesulfurization of naphtha 有权
    石脑油选择性加氢脱硫方法

    公开(公告)号：US07785461B2

    公开(公告)日：2010-08-31

    申请号：US11099476

    申请日：2005-04-06

    申请人： Rafael Menegassi De Almeida ,  Jefferson Roberto Gomes ,  Marcelo Edral Pacheco ,  Marcus Vinicius Eiffle Duarte ,  Rogerio Oddone ,  Giane Ribeiro Stuart

    发明人： Rafael Menegassi De Almeida ,  Jefferson Roberto Gomes ,  Marcelo Edral Pacheco ,  Marcus Vinicius Eiffle Duarte ,  Rogerio Oddone ,  Giane Ribeiro Stuart

    IPC分类号： C10G65/04

    CPC分类号： C10G45/02 ,  C10G2400/02

    摘要： A process for the selective hydrodesulfurization of a naphtha containing olefins and organosulfur compounds is disclosed, which minimizes the hydrogenation of the olefins and results in a product with a low sulfur content. The process involves a two-stage hydrodesulfurization with H2S removed from the first stage effluent. A flow of hydrogen and at least one added non-reactive compound is fed into the first stage, wherein the H2 molar fraction ranges from 0.2 to 1.0, and with H2S at the reactor intake limited to a maximum of 0.1% by volume. The second stage involves a feedstream of hydrogen and at least one added non-reactive compound, wherein the H2 molar fraction ranges from 0.2 to 0.7 and with H2S at the reactor intake limited to a maximum of 0.05% by volume.

    摘要翻译： 公开了含有烯烃和有机硫化合物的石脑油的选择性加氢脱硫的方法，其使烯烃的氢化最小化并导致具有低硫含量的产物。 该方法涉及从第一阶段流出物中除去H 2 S的两步加氢脱硫。 将氢气流和至少一种添加的非反应性化合物流进入第一阶段，其中H 2摩尔分数为0.2-1.0，反应器进料中的H 2 S限制为最大0.1体积％。 第二阶段涉及氢气和至少一种添加的非反应性化合物的进料流，其中H 2摩尔分数为0.2-0.7，反应器进料中的H 2 S为最大0.05体积％。