Jet fuels having superior thermal stability
    22.
    发明授权
    Jet fuels having superior thermal stability 有权
    喷气燃料具有优异的热稳定性

    公开(公告)号:US09169451B2

    公开(公告)日:2015-10-27

    申请号:US13208813

    申请日:2011-08-12

    摘要: Disclosed herein are jet fuel compositions containing (a) a total aromatics content of from 2 vol. % to no more than about 25 vol. %; (b) a net heat of combustion of at least about 125,000 Btu/gal; (c) a concentration of less than about 5 vol. % of hydrocarbons having a boiling point greater than or equal to about 550° F., as determined by ASTM D 2887; and (d) a Jet Fuel Thermal Oxidation Test (JFTOT) thermal stability characterized by a filter pressure drop of no more than 25 mm Hg, a breakpoint temperature greater than or equal to about 300° C., and an overall tube deposit rating less than 3, as determined by ASTM D 3241. Methods for their preparation are also disclosed.

    摘要翻译: 本文公开的是喷气燃料组合物,其含有(a)总芳烃含量为2体积% %至不超过25体积 %; (b)至少约125,000Btu / gal的净燃烧热; (c)浓度小于约5体积% %的沸点大于或等于约550°F的烃,如ASTM D 2887测定; 和(d)喷射燃料热氧化试验(JFTOT)的热稳定性,其特征在于过滤器压降不超过25mm Hg,断点温度大于或等于约300℃,整体管沉积物评级较低 超过3,由ASTM D 3241测定。它们的制备方法也被公开。

    CATALYST COMPOSITION PREPARATION AND USE
    30.
    发明申请
    CATALYST COMPOSITION PREPARATION AND USE 有权
    催化剂组合物的制备和使用

    公开(公告)号:US20120065056A1

    公开(公告)日:2012-03-15

    申请号:US13298838

    申请日:2011-11-17

    摘要: A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e   (I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurisation and hydrodenitrification.

    摘要翻译: 通式(X)b(M)c(Z)d(O)e(I)的本体金属氧化物催化剂组合物,其中X表示至少一种非贵金属VIII族金属; M表示至少一种非贵族VIb族金属; Z表示选自铝,硅,镁,钛,锆,硼和锌中的一种或多种元素; b和c之一是整数1; d和e,b和c中的另一个分别为大于0的数,使得b:c的摩尔比在0.5:1至5:1的范围内,d:c的摩尔比为 0.2:1至50:1的范围,e:c的摩尔比在3.7:1至108:1的范围内; 是通过在质子液体中控制(共)沉淀组分金属化合物,难熔氧化物材料和碱性化合物制备的。 所得组合物可用于特别是加氢脱硫和加氢脱氮的加氢处理方法。