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    • 4. 发明授权
    • Catalytic cracking process with simultaneous production of a low BTU
fuel gas and catalyst regeneration
    • 催化裂化过程同时生产低BTU燃料气体和催化剂再生
    • US4421637A
    • 1983-12-20
    • US332161
    • 1981-12-18
    • Dane C. GrenobleWalter Weissman
    • Dane C. GrenobleWalter Weissman
    • C01B3/36C01B3/38C10G11/04
    • C10G11/04C01B3/363C01B3/386C01B2203/0233C01B2203/0261C01B2203/0283C01B2203/0811C01B2203/1041C01B2203/1082C01B2203/1094C01B2203/1247C01B2203/1258Y02P20/584
    • A process for catalytically cracking a hydrocarbon with simultaneous production of a low BTU fuel gas and catalyst regeneration comprising contacting a hydrocarbon feed, at elevated temperature and in a cracking zone, with a solid acid catalyst comprising a catalytic metal oxide component wherein said metal is selected from the group consisting essentially of (a) tungsten, niobium and mixtures thereof (b) mixture of (a) with tantalum, hafnium, chromium, titanium, zirconium and mixtures thereof, said oxide component being supported on a silica-containing inorganic refractory metal oxide support having a silica content less than 50 wt. % of the total support, to produce a cracked product and a deactivated catalyst and regenerating the deactive catalyst to produce a low BTU gas rich in CO, a gas rich in H.sub.2, or both and recirculating the regenerated catalyst back to the cracking zone, said catalyst being steamed prior to use at a temperature at least 600.degree. C. In a preferred embodiment, the catalyst support will comprise a mixture of silica and .gamma.-alumina.
    • 一种同时生产低BTU燃料气体和催化剂再生的催化裂化烃的方法,包括使烃进料在升高的温度和在裂化区中与包含催化金属氧化物组分的固体酸催化剂接触,其中所述金属被选择 由(a)钨,铌及其混合物组成的组(b)(a)与钽,铪,铬,钛,​​锆及其混合物的混合物,所述氧化物组分负载在含二氧化硅的无机难熔金属 氧化物载体,其二氧化硅含量小于50wt。 产生裂化产物和失活的催化剂并再生该活性催化剂以产生富含CO,富含H 2的二氧化碳或二者的低BTU气体,并将再生催化剂再循环回裂化区,所述 催化剂在使用前在至少600℃的温度下蒸发。在优选的实施方案中,催化剂载体将包含二氧化硅和γ-氧化铝的混合物。
    • 5. 发明授权
    • Process for preparing ultra-stable, high surface area alpha-alumina
    • 制备超稳定,高表面积ALPHA-ALUMINA的方法
    • US4169883A
    • 1979-10-02
    • US927827
    • 1978-07-25
    • Lawrence L. MurrellDane C. GrenobleJohn P. DeLuca
    • Lawrence L. MurrellDane C. GrenobleJohn P. DeLuca
    • B01J21/04B01J37/00C01F7/02
    • C01F7/021B01J21/04B01J37/0018C01P2006/12C01P2006/13
    • The preparation of an ultra-stable, high surface area alpha-alumina catalyst and catalyst support suitable for use in high temperature processes such as petroleum refining processes, e.g., resid cat cracking and steam reforming, is disclosed. The process comprises impregnating high surface area gamma-alumina having narrow pores with a carbonaceous material that readily chars to form carbon. The impregnated alumina is then heated to a temperature sufficient to induce charring, following which the gamma-alumina is converted to alpha-alumina by further heating. The carbon is subsequently removed by oxidation. The alpha-alumina thus produced can withstand temperatures up to at least about 1000.degree. C. in the presence of steam without substantial loss of surface area.
    • 在从γ-氧化铝制备稳定的高表面α-氧化铝的方法中,用可碳化碳质材料如糖浸渍具有平均尺寸在20至100范围内的孔的γ-氧化铝。 将浸渍的γ-氧化铝在非氧化条件下加热以将碳质材料转化为碳。 然后将所得含碳γ-氧化铝在非氧化条件下进一步加热以将γ-氧化铝转化为α-氧化铝,最后将含碳的α-氧化铝在氧化气氛中加热以通过氧化除去碳。 该产品是具有相对较高表面积的α-氧化铝,并且在蒸汽存在下可承受至少1000℃的温度,而不会显着损失面积。 α-氧化铝产品可用作例如催化剂或催化剂载体。 石油炼制工艺。
    • 6. 发明授权
    • Process for recovering olefins from cat-cracked gas without accumulating
undesirable oxides of nitrogen
    • 从催化裂化气体回收烯烃的方法,而不会积聚不需要的氮氧化物
    • US5444176A
    • 1995-08-22
    • US967835
    • 1992-10-28
    • Dane C. GrenobleRoy T. HalleWilliam D. Thomson
    • Dane C. GrenobleRoy T. HalleWilliam D. Thomson
    • C07C7/11B01D53/14B01D53/54C07C11/02C10G55/06C10G70/04C10G70/06F25J3/02C07C7/00F25J3/00
    • C10G70/041C10G70/06F25J3/0209F25J3/0219F25J3/0233F25J3/0238F25J3/0242F25J3/0247F25J3/0252F25J2205/50F25J2210/12F25J2215/62F25J2215/64F25J2220/02
    • A safe, effective, and economical method is provided for recovering olefins from cat-cracked gases without accumulating dangerous amounts of nitrogen oxides. A stream of cat-cracked gas first is scrubbed to remove acid gases, including nitrogen dioxide (NO.sub.2), and then is passed through a depropanizer fractionation tower. Hydrocarbons having four or more carbon atoms are recovered in the bottoms of the depropanizer, and the overhead from the depropanizer--which is composed of hydrocarbons having three or fewer carbon atoms--is sent to an absorber demethanizer tower. Hydrocarbons having two or more carbon atoms are recovered in the bottoms from the absorber demethanizer tower, where temperatures are no lower than about -45.56.degree. C. (-50.degree. F.). The overhead from the absorber demethanizer tower--which is composed of methane, hydrogen, and trace amounts of nitrogen oxide, C.sub.2, and absorbent (C.sub.3)--then is chilled to condense and recover trace amounts of C.sub.2 and heavier gases, including trace amounts of the C.sub.3 absorbent, at temperatures of about -101.11.degree. C. (-150.degree. F.) or higher. Thus, recovery of desired hydrocarbons from the cat-cracked gas is conducted at temperatures that are high enough to prevent the oxidation of nitric oxide (NO) to form nitrogen dioxide (NO.sub.2) and high enough to prevent the accumulation of unwanted nitrogen oxides.
    • 提供了一种安全,有效和经济的方法来回收来自猫裂纹气体的烯烃,而不会累积危险的氮氧化物。 首先将一批猫裂纹气体洗涤以除去包括二氧化氮(NO2)在内的酸性气体,然后通过脱丙烷塔分馏塔。 具有四个或更多碳原子的碳氢化合物被回收到脱丙烷塔的底部,并且由脱丙烷化器(其由具有三个或更少碳原子的烃组成)的塔顶馏出物被送到吸收器脱甲烷塔。 具有两个或多个碳原子的烃在来自吸收器脱甲烷塔的塔底中回收,其中温度不低于约-45.56℃(-50°F)。 由甲烷,氢气和痕量的氮氧化物C2和吸收剂(C3)组成的吸收剂脱甲烷塔的塔顶馏出物冷凝并回收痕量的C2和较重的气体,包括痕量的 C3吸收剂,在约-101.11℃(-150°F)或更高的温度下。 因此,从破裂气体回收所需的烃是在足够高的温度下进行的,以防止一氧化氮(NO)氧化形成二氧化氮(NO 2),并且足够高以防止不想要的氮氧化物的积聚。
    • 9. 发明授权
    • Acid catalyzed hydrocarbon conversion processes utilizing a catalyst
comprising a Group IVB, VB or VIB metal oxide on an inorganic
refractory oxide support
    • 在无机耐火氧化物载体上使用含有IVB族,VB族或VIB族金属氧化物的催化剂的酸催化烃转化方法
    • US4233139A
    • 1980-11-11
    • US927828
    • 1978-07-25
    • Lawrence L. MurrellChang J. KimDane C. Grenoble
    • Lawrence L. MurrellChang J. KimDane C. Grenoble
    • B01J23/20B01J23/30B01J37/10C10G11/04C10G47/12C10G49/04C10G49/18
    • C10G11/04B01J23/20B01J23/30B01J37/10C10G47/12
    • It has been discovered and forms the basis of the disclosure that various acid catalyzed hydrocarbon conversion processes such as catalytic cracking of gas oil; xylene isomerization; toluene disproportionation; dealkylation of aromatics; ethylene, butylene, isobutylene, propylene polymerization; olefin isomerization; alcohol dehydration; olefin hydration; alkylation; heavy ends cat cracking, etc. are dramatically improved insofar as percent conversion, and selectivity are concerned by the use of a catalyst selected from the group consisting of the oxides of tungsten, niobium and mixtures thereof, and tungsten or niobium oxides in combination with one or more additional metal oxides selected from the group consisting of tantalum oxide, hafnium oxide, chromium oxide, titanium oxide and zirconium oxide, supported on an inorganic refractory oxide support. These catalysts may be prepared by the methods known in the art, i.e., incipient wetness, impregnation, coprecipitation, etc. of the metal oxide precursor onto or with the supports followed by conversion into the oxide form. Before use, the metal oxide/support combination is preferably subjected to steaming at elevated temperatures either before introduction into the reactor or in situ in the process reactor. Conventional catalytic cracking catalysts are unstable at the elevated temperatures where the metal oxide/support combinations of the present invention are uniquely stable.
    • 已经发现并形成了各种酸催化烃转化过程如瓦斯油催化裂化的公开的基础; 二甲苯异构化; 甲苯歧化; 芳烃脱烷基化; 乙烯,丁烯,异丁烯,丙烯聚合; 烯烃异构化; 酒精脱水; 烯烃水合; 烷基化; 通过使用选自钨,铌及其混合物的氧化物的催化剂和钨或铌氧化物与一种或多种氧化物的组合,可以显着改善重馏分猫裂解等 或更多的另外的金属氧化物,其选自负责在无机难熔氧化物载体上的氧化钽,氧化铪,氧化铬,氧化钛和氧化锆。 这些催化剂可以通过本领域已知的方法制备,即金属氧化物前体在载体上或与载体上的初始润湿,浸渍,共沉淀等,然后转化为氧化物形式。 在使用之前,金属氧化物/载体组合物优选在引入反应器之前或在加工反应器中原位在高温下进行蒸汽蒸发。 常规的催化裂化催化剂在本发明的金属氧化物/载体组合是独特稳定的高温下是不稳定的。