Ethylene Production By Steam Cracking of Normal Paraffins
    55.
    发明申请
    Ethylene Production By Steam Cracking of Normal Paraffins 有权
    乙烷生产通过蒸汽裂解正常石蜡

    公开(公告)号:US20110245556A1

    公开(公告)日:2011-10-06

    申请号:US12749817

    申请日:2010-03-30

    IPC分类号: C07C4/02

    摘要: A simulated moving bed adsorptive separation process for preparing the separate feed streams charged to naphtha reforming unit and a steam cracking unit has been developed. The feed stream to the overall unit is passed into the adsorptive separation unit. The desorbent in the adsorptive separation is C12 hydrocarbons. The simulated moving bed adsorptive separation separates the components of the feed stream into a normal paraffin stream, which is charged to the steam cracking process, and non-normal hydrocarbons which are passed into a reforming zone. The desorbent is readily separated from the normal paraffin stream and from the non-normal paraffin stream and the simulated moving bed adsorption zone is operated at an A/Fn ratio of from about 0.90 to about 0.92.

    摘要翻译: 已经开发了用于制备装载到石脑油重整单元和蒸汽裂解装置的单独进料流的模拟移动床吸附分离方法。 到整个单元的进料流被送入吸附分离单元。 吸附分离中的解吸剂是C12烃。 模拟的移动床吸附分离将进料流的组分分离成正常的石蜡流,将其装入蒸汽裂解过程,并将非正常烃进入重整区。 解吸剂容易地与正链烷烃流和非正构链烷烃流分离,并且模拟移动床吸附区以约0.90至约0.92的A / Fn比操作。

    Catalytic reforming process with sulfur preclusion
    56.
    发明授权
    Catalytic reforming process with sulfur preclusion 失效
    催化重整过程与硫磺排除

    公开(公告)号:US5366614A

    公开(公告)日:1994-11-22

    申请号:US63284

    申请日:1993-05-18

    IPC分类号: C10G61/06 C10G35/06 C10G25/00

    CPC分类号: C10G61/06

    摘要: A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone containing a mixed reforming catalyst and sulfur sorbent and a sulfur-removal zone utilizing a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in achieving reforming-catalyst stability.

    摘要翻译: 烃原料被催化重整以在包括含有混合重整催化剂和硫吸附剂的第一重整区和使用锰组分的除硫区域的工艺组合中进行脱氢环化以排除来自进料到第二重整区的硫。 该工艺组合在实现重整 - 催化剂稳定性方面显示出比现有技术方法显着的优点。

    Catalytic reforming process with sulfur preclusion
    57.
    发明授权
    Catalytic reforming process with sulfur preclusion 失效
    催化重整过程与硫磺排除

    公开(公告)号:US5211837A

    公开(公告)日:1993-05-18

    申请号:US842835

    申请日:1992-02-27

    IPC分类号: C10G61/06

    CPC分类号: C10G61/06

    摘要: A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone and a sulfur-removal zone utilizing a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in the stability of the extremely sulfur-sensitive catalyst utilized in the second reforming zone.

    摘要翻译: 烃原料被催化重整以在包含第一重整区和除硫区的方法组合中使链烷烃脱氢环化,所述第一重整区和除硫区利用锰组分排除来自进料到第二重整区的硫。 在第二重整区中使用的极端敏感催化剂的稳定性方面,该方法组合显示出比现有技术方法显着的优点。

    Purifying feed for reforming over zeolite catalysts
    59.
    发明授权
    Purifying feed for reforming over zeolite catalysts 失效
    用于在沸石催化剂上重整的净化进料

    公开(公告)号:US5106484A

    公开(公告)日:1992-04-21

    申请号:US629879

    申请日:1990-12-19

    CPC分类号: C10G61/06 C10G67/06 C10G69/08

    摘要: The present invention is directed to a process for treating hydrotreated naphtha which involves treating the naphtha over massive nickel catalyst followed by treating the naphtha over a metal oxide under conditions effective for removing impurities from said naphtha to result in substantially purified naphtha, wherein the metal oxide is selected from the group of metal oxides having a free energy of formation of sulfide which exceeds said free energy of formation of platinum sulfide, such as manganous oxide. In so doing, naphtha in the gas phase in the presence of hydrogen is passed over the manganous oxide at a temperature within the range of about 800.degree. F. and 1100.degree. F., a hydrogen to oil molar ratio between about 1:1 and 6:1, a whsv between about 2 and 8, and pressure between about 50 and 300 psig; and the naphtha in the liquid phase at a temperature between about 300.degree. F. and about 350.degree. F., and whsv less than about 5 is passed over the massive nickel.The naphtha in the liquid phase, at about ambient temperature, and at a whsv between 2 and 10, may also be passed over a Na Y mole sieve prior to treating over massive nickel and manganous oxide. In addition the naphtha be being passed over alumina after treating over massive nickel and prior to treating over manganous oxided in the liquid phase, at a temperature between 300.degree. F. and 350.degree. F., and a whsv between 2 and 10.The naphtha may also be passed over a mole sieve water trap in the liquid phase at ambient temperature and at a whsv between 2 and 10, prior to treating over massive nickel and manganous oxide.

    摘要翻译: 本发明涉及一种处理加氢处理的石脑油的方法,该方法涉及在大量镍催化剂上处理石脑油,然后在有效去除所述石脑油杂质的条件下在金属氧化物上处理石脑油,导致基本上纯化的石脑油,其中金属氧化物 选自具有形成硫化物的自由能的金属氧化物的组,其超过形成硫化铂的所述自由能,例如氧化锰。 在这样做的过程中,氢气存在下的气相中的石脑油在约800°F至1100°F的温度范围内通过二氧化锰,氢与油的摩尔比约为1:1至 6:1,约2至8之间的压力,压力在约50至300psig之间; 并且液相中的石脑油在约300°F至约350°F之间,小于约5°的温度通过块状镍。 液相中的石脑油在约环境温度和2至10秒之间也可以通过Na Y摩尔筛,然后处理大量的镍和氧化锰。 此外,石脑油在处理大量镍之后,在液相中处理过氧化锰之前,在300°F至350°F的温度和2至10°之间的范围内,通过氧化铝。石脑油 也可以在处理大量镍和氧化锰之前在环境温度和2至10℃之间的液相中通过摩尔筛捕集器。

    Desulfurization of hydrocarbons
    60.
    发明授权
    Desulfurization of hydrocarbons 失效
    碳氢化合物的脱硫

    公开(公告)号:US4592829A

    公开(公告)日:1986-06-03

    申请号:US686453

    申请日:1984-12-26

    摘要: A process for the use of such sorbent, or catalyst, to effectively remove sulfur from naphthas at temperatures above about 350.degree. F. without the significant production, if any, of PNA's. The invention embodies a particulate mass of a sorbent, or catalyst, comprised of nickel in concentration ranging from about 10 percent to about 70 percent, preferably from about 20 percent to about 50 percent, calculated as metallic nickel based on the total weight of the sorbent, iron in concentration ranging from about 1 percent to about 15 percent, preferably from about 2 percent to about 10 percent, calculated as metallic iron based on the total weight of the sorbent, or catalyst composition and a porous, refractory inorganic oxide such as silica, alumina, clays, or mixture thereof; preferably alumina, with which the nickel and iron are composited.

    摘要翻译: 使用这种吸附剂或催化剂的方法在高于约350°F的温度下有效地除去石脑油中的硫,而没有PNA的显着生产(如果有的话)。 本发明体现了由镍组成的吸附剂或催化剂的颗粒物质,其浓度范围为约10%至约70%,优选约20%至约50%,以基于吸附剂总重量的金属镍计算 ,铁的浓度范围为约1%至约15%,优选约2%至约10%,以基于吸附剂或催化剂组合物的总重量计的金属铁计算,和多孔耐火无机氧化物如二氧化硅 ,氧化铝,粘土或其混合物; 优选氧化铝,镍和铁与其合成。