Process for removing sulfur from coal
    22.
    发明授权
    Process for removing sulfur from coal 失效
    从煤中除硫的工艺

    公开(公告)号:US4197090A

    公开(公告)日:1980-04-08

    申请号:US876784

    申请日:1978-02-10

    CPC classification number: C10L9/02

    Abstract: A process for reducing the pyritic sulfur content of coal comprising the steps of:(1) contacting an aqueous slurry of water and pyrite-containing coal particles at elevated temperature with oxygen, the contacting of step 1 being such that without step 2 the aqueous slurry would have a pH of less than 5.5;(2) maintaining the aqueous slurry of step 1 at a pH of from about 5.5 to 12.0; and(3) recovering coal particles of reduced pyritic sulfur content.

    Abstract translation: 一种降低煤的黄铁矿硫含量的方法,包括以下步骤:(1)在升高的温度下使水和含硫铁矿的煤颗粒的含水浆料与氧气接触,步骤1的接触使得在没有步骤2的情况下, 将具有小于5.5的pH值; (2)将步骤1的含水浆料保持在约5.5至12.0的pH; 和(3)回收硫化黄硫含量降低的煤颗粒。

    Catalyst demetallization utilizing a combination of reductive and
oxidative washes
    24.
    发明授权
    Catalyst demetallization utilizing a combination of reductive and oxidative washes 失效
    催化剂脱金属利用还原和氧化洗涤的组合

    公开(公告)号:US4101444A

    公开(公告)日:1978-07-18

    申请号:US695662

    申请日:1976-06-14

    CPC classification number: B01J21/20 B01J29/90 Y10S502/516

    Abstract: A process for the removal of metal poisons such as nickel, iron and/or vanadium from a hydrocarbon conversion catalyst which includes the steps of contacting the catalyst with both a reductive wash and a subsequent oxidative wash to remove at least a portion of the metal poisons from the catalyst. A preferred oxidative wash medium comprises an aqueous solution of hydrogen peroxide. The vanadium and nickel metals may be recovered from the resultant used wash solutions for possible metallurgical use.

    Abstract translation: 一种从烃转化催化剂中除去金属毒素如镍,铁和/或钒的方法,其包括使催化剂与还原性洗涤和随后的氧化洗涤相接触以除去至少一部分金属毒素的步骤 从催化剂。 优选的氧化洗涤介质包含过氧化氢水溶液。 钒和镍金属可以从所得到的使用的洗涤溶液中回收,以便可能的冶金用途。

    Sulfur removal process
    26.
    发明授权
    Sulfur removal process 失效
    除硫过程

    公开(公告)号:US6048451A

    公开(公告)日:2000-04-11

    申请号:US783221

    申请日:1997-01-14

    CPC classification number: C10G29/205

    Abstract: A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing impurities to sulfur-containing products of higher boiling point by treatment with an alkylating agent in the presence of an acid catalyst and removing at least a portion of these higher boiling products by fractional distillation. Suitable alkylating agents include alcohols and olefins. In a preferred embodiment, catalytic cracking products which contain aromatic sulfur compounds as impurities are used as a feedstock for the process.

    Abstract translation: 硫含量降低的产物由烃类混合物组成的原料产生,含有有机硫化合物作为不需要的杂质。 该方法包括通过在酸催化剂存在下用烷基化剂处理将含硫杂质的至少一部分转化为含高沸点产物,并通过分馏将至少一部分较高沸点产物除去 。 合适的烷基化剂包括醇和烯烃。 在优选的实施方案中,将含有芳族硫化合物作为杂质的催化裂化产物用作该方法的原料。

    Catalytic oxidation and oxidative dehydrogenation using
metal-compound-loaded, deboronated hams-1b crystalline borosilicate
molecular sieve compositions
    27.
    发明授权
    Catalytic oxidation and oxidative dehydrogenation using metal-compound-loaded, deboronated hams-1b crystalline borosilicate molecular sieve compositions 失效
    使用金属化合物负载的脱硼火山-1b结晶硼硅酸盐分子筛组合物的催化氧化和氧化脱氢

    公开(公告)号:US5324702A

    公开(公告)日:1994-06-28

    申请号:US991113

    申请日:1992-12-16

    CPC classification number: B01J37/06 B01J29/86

    Abstract: Compositions comprising certain metal-containing materials distributed interactively on a deboronated HAMS-1B crystalline borosilicate molecular sieve which are useful for catalytically oxidizing or oxidatively dehydrogenating organic compounds such as alkanes, aromatics, and alkyl-substituted aromatics are described. Alkanes are oxidatively dehydrogenated to olefins, and an aromatic compound such as benzene can be oxidized by nitric and/or nitrous oxide to largely phenol or largely nitrobenzene depending upon the oxidation temperature. When the compound is a methylaromatic, oxidation produces an aromatic aldehyde. Alkyl groups larger than methyl oxidatively dehydrogenate to alkenyl groups. The compositions can be used in a process to separate p-xylene from a mixture of its isomers based upon the ability of the compositions, which preferably comprise a iron molybdenum material interactively distributed on a deboronated HAMS-1B crystalline borosilicate molecular sieve, to selectively oxidize the p-xylene to an aldehyde or dialdehyde while not substantially oxidizing the ortho and metaxylene isomers. Such partially oxidized mixtures of p-xylene are useful to make TPAA or as feeds to a water-based, further oxidation to make terephthalic acid. Carbon dioxide used as a carrier gas with a methylaromatic feed to the oxidation catalyst is shown to have a beneficial effect on yield and selectivity.

    Abstract translation: 描述了包含某些含金属材料的组合物交互地分布在脱硼的HAMS-1B结晶硼硅酸盐分子筛上,其可用于催化氧化或氧化脱氢有机化合物如烷烃,芳族化合物和烷基取代的芳族化合物。 烷烃被氧化脱氢成烯烃,芳族化合物如苯可以根据氧化温度被硝酸和/或一氧化二氮氧化成大部分苯酚或大部分硝基苯。 当化合物是甲基芳族化合物时,氧化产生芳族醛。 大于甲基的烷基氧化脱氢成烯基。 基于组合物的能力,组合物可用于从其异构体的混合物中分离对二甲苯的方法,该组合物优选包含交联分布在脱硼的HAMS-1B结晶硼硅酸盐分子筛上的铁钼材料,以选择性氧化 对二甲苯变成醛或二醛,而基本上不氧化邻位和间二甲苯异构体。 这种部分氧化的对二甲苯的混合物可用于制备TPAA或作为进料进行水基的进一步氧化以制备对苯二甲酸。 用作载气的二氧化碳与甲基芳族化合物进入氧化催化剂显示对产率和选择性具有有益的影响。

    Composition of matter and process useful for conversion of hydrocarbons
    29.
    发明授权
    Composition of matter and process useful for conversion of hydrocarbons 失效
    用于碳氢化合物转化的物质和方法的组成

    公开(公告)号:US4735705A

    公开(公告)日:1988-04-05

    申请号:US048623

    申请日:1987-05-11

    CPC classification number: C10G11/04 C10G11/05 Y10S502/524

    Abstract: An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major component, solid particles capable of promoting hydrocarbon conversion at hydrocarbon conversion conditions, and, as a minor component, discrete entities comprising at least one spinel, preferably alkaline earth metal-containing spinel, and a minor amount of at least one added component selected from the group consisting of alkali metal components, calcium components, barium components, strontium components, beryllium components and mixtures thereof.

    Abstract translation: 一种使用周期性再生以除去含碳沉积物的催化剂转化烃的改进方法,该催化剂由含有作为主要组分的能够在烃转化条件下促进烃转化的固体颗粒和作为次要组分的混合物 ,包含至少一种尖晶石,优选含碱土金属的尖晶石和少量至少一种选自碱金属组分,钙组分,钡组分,锶组分,铍组分和混合物的至少一种添加组分的离散实体 其中。

    Process for removing sulfur from coal
    30.
    发明授权
    Process for removing sulfur from coal 失效
    从煤中除硫的工艺

    公开(公告)号:US4295858A

    公开(公告)日:1981-10-20

    申请号:US126248

    申请日:1980-03-03

    CPC classification number: C10L9/00 B03B1/04 B03B9/00 B03D3/06 C10L9/02

    Abstract: A process for reducing the sulfur and ash content of coal comprising the steps of: (1) contacting coal particles containing ash and iron pyrite mineral matter with a promoting amount of at least one conditioning agent, said conditioning agent having a ferrous component maintained at a pH of from about 5.5 to 11.0 and being capable of modifying or altering the existing surface characteristics of the pyrite under conditions to effectuate alteration of modification of at least a portion of the contained pyritic sulfur; (2) agglomerating the coal particles while said pyrite surfaces are altered or modified in an aqueous medium with hydrocarbon oil to form coal-hydrocarbon oil agglomerates; (3) separating said coal-hydrocarbon oil agglomerates from pyrite mineral matter and ash to recover coal-hydrocarbon oil agglomerates wherein the coal exhibits reduced sulfur and ash content.

    Abstract translation: 一种减少煤的硫和灰分含量的方法,包括以下步骤:(1)使含有灰分和铁黄铁矿矿物质的煤颗粒与促进量的至少一种调节剂接触,所述调理剂具有维持在 pH为约5.5至11.0,并且在条件下能够改变或改变黄铁矿的现有表面特性,以实现至少部分含硫黄硫的改性改性; (2)在含烃油的含水介质中改变或改性所述黄铁矿表面的同时使煤颗粒凝聚,形成煤 - 烃油附聚物; (3)将煤 - 烃油附聚物与黄铁矿矿物和灰分离,以回收煤 - 烃油附聚物,其中煤表现出降低的硫和灰分含量。

Patent Agency Ranking