Reduction of sulfur content in a gaseous stream
    31.
    发明授权
    Reduction of sulfur content in a gaseous stream 失效
    减少气流中的硫含量

    公开(公告)号:US5512260A

    公开(公告)日:1996-04-30

    申请号:US205436

    申请日:1994-03-04

    IPC分类号: B01D53/86 C01B17/04 B01D53/48

    CPC分类号: B01D53/8615 C01B17/0465

    摘要: A process for reducing sulfur content in a gaseous stream with the production of elemental sulfur by first treating the gaseous steam with hydrogenation and hydrolysis to convert substantially all of the sulfur components therein to hydrogen sulfide. Then reducing the water content of the gaseous stream to optimize chemical equilibrium. Thereafter, the gaseous steam is contacted in an oxidation reactor with an acid catalyst at a temperature of about 150.degree. C. to about 350.degree. C. to convert hydrogen sulfide to elemental sulfur. The product gas leaving the oxidation reactor is cooled to separate elemental sulfur by condensation. The acid catalyst is a shape selective zeolite, a metal-exchanged or impregnated alumina, or a mixture thereof. The alumina is gamma phase alumina impregnated with from about 0.2 wt % to about 2.0 wt % metal.

    摘要翻译: 通过首先用氢化和水解处理气态蒸汽以将其中的所有硫成分基本上转化为硫化氢,从而降低产生元素硫的气流中的硫含量的方法。 然后减少气流的含水量以优化化学平衡。 此后,气态蒸汽在氧化反应器中与酸催化剂在约150℃至约350℃的温度下接触,以将硫化氢转化为元素硫。 离开氧化反应器的产物气体被冷却以通过冷凝分离元素硫。 酸催化剂是形状选择性沸石,金属交换或浸渍的氧化铝或其混合物。 氧化铝是用约0.2重量%至约2.0重量%金属浸渍的γ相氧化铝。

    Alkylation of aromatics
    32.
    发明授权
    Alkylation of aromatics 失效
    芳烃的烷基化

    公开(公告)号:US5157185A

    公开(公告)日:1992-10-20

    申请号:US402018

    申请日:1989-09-01

    IPC分类号: B01J29/40 C07C2/66

    摘要: Alkylation of aromatics, e.g. ethylbenzene preparation, with minimized o-xylene make by contacting with olefin alkylating agent in the presence of ZSM-5 crystals having a diffusion rate constant of at least about 100 sec.sup.-1 .times.10.sup.-6 and an alpha value of less than about 100 prepared from a non-organic forming mixture comprising a silica source of precipitated silica having a particle size of 1 to 500 microns.

    摘要翻译: 芳族化合物的烷基化,例如 乙基苯制备,通过在烯烃烷基化剂与ZSM-5晶体的存在下使烷基化反应最小化,所述ZSM-5晶体的扩散速率常数为至少约100秒-1×10-6,α值小于约100,由 非有机形成混合物,其包含粒度为1至500微米的沉淀二氧化硅的二氧化硅源。

    Catalytic conversion
    34.
    发明授权
    Catalytic conversion 失效
    催化转化

    公开(公告)号:US4983275A

    公开(公告)日:1991-01-08

    申请号:US426837

    申请日:1989-10-26

    IPC分类号: C01B37/02 C01B39/36

    摘要: This invention relates to use of a new improved form of crystalline silicate identified as zeolite ZSM-11 as a catalyst component for organic compound, e.g. hydrocarbon compound, conversion.

    摘要翻译: 本发明涉及鉴定为ZSM-11沸石的新型结晶硅酸盐形式用作有机化合物的催化剂组分的用途, 烃化合物,转化。

    Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds
    36.
    发明授权
    Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds 有权
    液相芳烃烷基化方法,包括用极性化合物原位催化剂再活化

    公开(公告)号:US06909026B2

    公开(公告)日:2005-06-21

    申请号:US10318882

    申请日:2002-12-13

    IPC分类号: C07C2/66 C07C2/68

    摘要: The catalyst becomes at least partially deactivated by sorbing catalyst poisons present in the feed during a process for alkylating aromatics by contacting a feed containing benzene, toluene, xylenes, alkylbenzenes, naphthalene or substituted naphthalenes under liquid phase alkylating conditions with C2-C16 olefins in the presence of MCM-22, MCM-36, MCM-49, MCM-56, ZSM-5, ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-48, ZSM-50, ZSM-4, ZSM-18, ZSM-20, Zeolite X, Zeolite Y, USY, mordenite or offretite to provide an alkylated aromatic product. The at least partially deactivated catalyst can be treated in situ by contacting with at least one polar compound having a dipole moment of at least 0.05 Debyes and selected from the group consisting of acetic acid, formic acid, water, and carbon monoxide, under conditions of temperature and pressure employed in the liquid phase alkylating conditions which are sufficient to at least partially desorb the catalyst poison from the catalyst.

    摘要翻译: 在芳族化合物的烷基化方法中,通过在液相烷基化条件下将含有苯,甲苯,二甲苯,烷基苯,萘或取代萘的进料与C 2 H 2化合物接触,使催化剂至少部分失活, 在MCM-22,MCM-36,MCM-49,MCM-56,ZSM-5,ZSM-11,ZSM-12,ZSM-23等的存在下, ZSM-35,ZSM-48,ZSM-50,ZSM-4,ZSM-18,ZSM-20,沸石X,沸石Y,USY,丝光沸石或黑斑,提供烷基化芳族产物。 所述至少部分失活的催化剂可以通过与至少一种偶极矩至少为0.05德拜的极性化合物接触而原位处理,并选自乙酸,甲酸,水和一氧化碳,条件是 在液相烷基化条件下使用的足以使催化剂毒物至少部分解吸的催化剂的温度和压力。

    Process for preparing short chain alkyl aromatic compounds
    39.
    发明授权
    Process for preparing short chain alkyl aromatic compounds 失效
    制备短链烷基芳族化合物的方法

    公开(公告)号:US4992606A

    公开(公告)日:1991-02-12

    申请号:US469998

    申请日:1990-01-25

    IPC分类号: B01J29/04 C07C2/12

    摘要: Relatively short chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively short chain alkylating agent under alkylation reaction conditions in the presence of catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07 and 3.42.+-.0.06 Angstroms.

    摘要翻译: 通过在烷基化反应条件下,在催化剂存在下,在烷基化反应条件下,使烷基化芳族化合物与相对短链烷基化剂进行烷基化,制备相对短链烷基芳族化合物,所述催化剂包含合成多孔结晶材料,其特征在于X射线衍射图包括在 12.36 +/- 0.4,11.03 +/- 0.2,8.83±0.14 6.18 +/- 0.12,6.00 +/- 0.10,4.06 +/- 0.07,3.91 +/- 0.07和3.42 +/- 0.06埃。

    Process for preparing long chain alkyl phenols
    40.
    发明授权
    Process for preparing long chain alkyl phenols 失效
    制备长链烷基酚的方法

    公开(公告)号:US4954663A

    公开(公告)日:1990-09-04

    申请号:US470015

    申请日:1990-01-25

    IPC分类号: B01J29/04 C07C2/12

    摘要: Long chain alkyl phenols are prepared by alkylating an alkylatable phenolic compound with a long chain alkylating agent under alkylation reaction conditions in the presence of catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07; 3.91.+-.0.07 and 3.42.+-.0.06 Angstroms.

    摘要翻译: 长链烷基酚通过在烷基化反应条件下在烷基化反应条件下在催化剂存在下烷基化制备,所述催化剂包含合成多孔结晶材料,其特征在于X射线衍射图包括在12.36±/ -0.4,11.03 +/- 0.2,8.83±0.14,6.18±0.12,6.00±0.10,4.06±0.07; 3.91 +/- 0.07和3.42 +/- 0.06埃。