公开(公告)号：US5906730A

公开(公告)日：1999-05-25

申请号：US686037

申请日：1996-07-25

申请人： Shigeto Hatanaka ,  Satoru Hikita ,  Osamu Sadakane ,  Tadao Miyama

发明人： Shigeto Hatanaka ,  Satoru Hikita ,  Osamu Sadakane ,  Tadao Miyama

IPC分类号： B01J23/24 ,  B01J23/75 ,  B01J23/755 ,  C07B61/00 ,  C10G45/06 ,  C10G45/08 ,  C10G65/04

CPC分类号： C10G65/04

摘要： A process for desulfurizing catalytically cracked gasoline containing sulfur compounds and olefin components, which comprises the steps of:1) first desulfurizing the catalytically cracked gasoline in the presence of a hydrodesulfurization catalyst at a desulfurization rate of 60 to 90%, a reaction temperature of 200 to 350.degree. C., a hydrogen partial pressure of 5 to 30 kg/cm.sup.2, a hydrogen/oil ratio of 500 to 3,000 scf/bbl, and a liquid hourly space velocity of 2 to 10 1/hr, said first desulfuriing step comprising supplying a feed having a hydrogen sulfide vapor concentration of not more than 0.1% by volume, and2) next desulfurizing the treated oil obtained in the first step in the presence of a hydrodesulfurization catalyst at a desulfurization rate of 60 to 90%, a reaction temperature of 200 to 300.degree. C., a hydrogen partial pressure of 5 to 15 kg/cm.sup.2, a hydrogen/oil ratio of 1,000 to 3,000 scf/bbl, and a liquid hourly space velocity of 2 to 10 1/hr, said second desulfurizing step comprising supplying a feed having a hydrogen sulfide vapor concentration of not more than 0.05% by volume. A reduction in octane number due to hydrogenation of olefin components is minimized while achieving a high desulfurization rate.

摘要翻译： 一种脱硫含硫化合物和烯烃组分的催化裂化汽油的方法，包括以下步骤：1）在加氢脱硫催化剂存在下，以60〜90％的脱硫率，反应温度为200℃，先将催化裂化汽油脱硫 至350℃，氢分压为5至30kg / cm2，氢/油比为500至3,000scf / bbl，液时空速为2至10l / hr，所述第一脱硫步骤包括 供给硫化氢蒸汽浓度为0.1体积％以下的原料，以及2）在加氢脱硫催化剂的存在下，以60〜90％的脱硫率，对第一工序中得到的处理油进行下一步脱硫，反应 温度为200〜300℃，氢分压为5〜15kg / cm2，氢/油比为1,000〜3,000scf / bbl，液时空速为2〜10l / hr，所述第二 脱硫步骤 供给硫化氢蒸汽浓度为0.05体积％以下的饲料。 由于烯烃组分的氢化导致的辛烷值的降低最小化，同时达到高的脱硫速率。

公开(公告)号：US5853570A

公开(公告)日：1998-12-29

申请号：US701957

申请日：1996-08-23

申请人： Shigeto Hatanaka ,  Osamu Sadakane ,  Satoru Hikita ,  Tadao Miyama

发明人： Shigeto Hatanaka ,  Osamu Sadakane ,  Satoru Hikita ,  Tadao Miyama

IPC分类号： C10G35/00 ,  B01J23/16 ,  B01J23/74 ,  C10G45/08 ,  C10G45/60

CPC分类号： C10G45/08 ,  C10G2400/02

摘要： A catalytically cracked gasoline feedstock is desulfurized under reaction conditions of a hydrogen feed rate measured at the reactor inlet of from 1 to 5 mols per mol of the feedstock oil and of from 5 to 50 mols per mol of the olefin components contained in the feedstock oil, a reaction temperature of from 200.degree. to 300.degree. C., a total pressure inside the reactor of from 10 to 20 kg/cm.sup.2 G, and a liquid hourly space velocity of from 2 to 8 l/hr, and using a catalyst which comprises a support mainly comprising alumina and having a surface area of 200 m.sup.2 /g or larger, wherein MoO.sub.3 in an amount of from 10 to 20 wt % and CoO in an amount of from 3 to 6 wt % in terms of inner content are fixed to the support, and the weight ratio of MoO.sub.3 to CoO is from 2.5 to 4.5.

摘要翻译： 催化裂化汽油原料在反应器入口处测量的氢进料速率为每摩尔原料油1至5摩尔的反应条件和每摩尔原料油中所含的5至50摩尔烯烃组分的反应条件下脱硫 反应温度为200-300℃，反应器内的总压为10至20kg / cm2G，液时空速为2-8升/小时，并使用包含 主要包含氧化铝并且表面积为200m 2 / g或更大的载体，其中含量为10至20重量％的MoO 3和以内含量计为3至6重量％的CoO固定为 载体，MoO 3与CoO的重量比为2.5〜4.5。