Process for pretreatment of light hydrocarbons to remove sulfur, water,
and oxygen-containing compounds
    61.
    发明授权
    Process for pretreatment of light hydrocarbons to remove sulfur, water, and oxygen-containing compounds 失效
    用于预处理轻质烃以除去硫,水和含氧化合物的方法

    公开(公告)号:US4795545A

    公开(公告)日:1989-01-03

    申请号:US97972

    申请日:1987-09-17

    申请人: Robert J. Schmidt

    发明人: Robert J. Schmidt

    摘要: A pretreatment process for removal of contaminants from a light hydrocarbon feedstock is presented. The feedstock is passed to a first adsorption zone containing a molecular sieve and thereafter passed to a second adsorption zone containing activated alumina. The process produces a hydrocarbon feedstock substantially free of sulfur compounds, oxygenates, and water. Such a process finds utility as a feed pretreatment step preceding a catalytic isomerization process.

    摘要翻译: 提出了一种从轻烃原料中除去污染物的预处理方法。 将原料送至含有分子筛的第一吸附区,然后通入含活性氧化铝的第二吸附区。 该方法产生基本上不含硫化合物,含氧化合物和水的烃原料。 这种方法可用作催化异构化方法之前的进料预处理步骤。

    Process for coproduction of isopropanol and tertiary butyl alcohol
    62.
    发明授权
    Process for coproduction of isopropanol and tertiary butyl alcohol 失效
    共生产异丙醇和叔丁醇的方法

    公开(公告)号:US4484013A

    公开(公告)日:1984-11-20

    申请号:US567205

    申请日:1983-12-30

    申请人: Robert J. Schmidt

    发明人: Robert J. Schmidt

    CPC分类号: C07C29/04 C07C5/3337

    摘要: A process is disclosed for the production of isopropanol and tertiary butyl alcohol from C.sub.3 and C.sub.4 hydrocarbons. The preferred embodiment of the invention comprises dehydrogenation of paraffins and direct hydration of the resulting olefins. Fractional distillation steps are employed between the dehydrogenation and dehydration zones and in the recycle stream to recover unconverted hydrocarbons leaving the hydration zone. This accommodates different hydration rates and prevents the passage of propylene into the dehydrogenation zone. In an alternative embodiment, the feed stream comprises olefins and is fed to the fractionation system. The dehydrogenation zone may be deleted from this embodiment.

    摘要翻译: 公开了用于从C3和C4烃生产异丙醇和叔丁醇的方法。 本发明的优选实施方案包括链烷烃的脱氢和所得烯烃的直接水合。 在脱氢和脱水区之间和循环流中采用分馏法,以回收离开水合区的未转化碳氢化合物。 这适应不同的水化速率并防止丙烯进入脱氢区。 在替代实施方案中,进料流包含烯烃并且进料至分馏系统。 可以从该实施方案中删除脱氢区。

    Hydration of olefins
    63.
    发明授权
    Hydration of olefins 失效
    烯烃的水合

    公开(公告)号:US4393256A

    公开(公告)日:1983-07-12

    申请号:US332042

    申请日:1981-12-17

    申请人: Robert J. Schmidt

    发明人: Robert J. Schmidt

    CPC分类号: C07C29/06 C07C41/01 C07C41/34

    摘要: Alcohols may be obtained by an indirect hydration of olefinic hydrocarbons in which said olefinic hydrocarbon is esterified by treatment with an inorganic acid to form dialkyl and alkyl hydrogen salts. The esters are then hydrolyzed with water, the reconstituted acid is stripped by means of a stripping agent such as nitrogen gas, and the resulting alcohols and ethers are recovered. The alcohol production is separated from the dialkyl ether, the latter then being subjected to further treatment such as thermal decomposition and hydrolysis to form an additional amount of the desired alcohol. The reconstituted inorganic acid may be recycled for use as an esterifying agent without having to reconstitute the acid.

    摘要翻译: 醇可以通过烯烃的间接水合获得,其中所述烯烃通过用无机酸处理而酯化,形成二烷基和烷基氢盐。 然后将酯用水水解,通过汽提剂如氮气汽提重构的酸,并回收得到的醇和醚。 将醇生产与二烷基醚分离,然后将其进一步处理,如热分解和水解,以形成额外量的所需醇。 重构的无机酸可以再循环用作酯化剂而不必重新构成酸。

    Hydration of olefinic compounds with dilute sulfuric acid and cobalt
sulfate
    64.
    发明授权
    Hydration of olefinic compounds with dilute sulfuric acid and cobalt sulfate 失效
    用稀硫酸和硫酸钴水解烯烃化合物

    公开(公告)号:US4267397A

    公开(公告)日:1981-05-12

    申请号:US106312

    申请日:1979-12-21

    IPC分类号: C07C29/04

    CPC分类号: C07C29/04 C12C11/02

    摘要: Olefinic compounds, and particularly olefinic hydrocarbons, containing from 2 to about 4 carbon atoms may be subjected to a direct hydration process utilizing a dilute aqueous sulfuric acid to treat the olefin at reaction conditions which will include a temperature in the range of from about 100.degree. to about 300.degree. C. and a pressure in the range of from about 1 to about 250 atmospheres. In addition, if so desired, a transition metal sulfate may also be present in the reaction mixture.

    摘要翻译: 含有2至约4个碳原子的烯属化合物,特别是烯烃可以在使用稀硫酸水溶液的反应条件下进行直接水合处理,反应条件将包括约100℃ 至约300℃,压力范围为约1至约250大气压。 此外,如果需要,过渡金属硫酸盐也可以存在于反应混合物中。

    Aromatic alkylation process with reduced byproduct formation
    67.
    发明授权
    Aromatic alkylation process with reduced byproduct formation 有权
    具有减少副产物形成的芳香族烷基化方法

    公开(公告)号:US09150469B2

    公开(公告)日:2015-10-06

    申请号:US12467622

    申请日:2009-05-18

    IPC分类号: C07C2/00 C07C6/12 C07C7/148

    摘要: Byproduct formation in aromatic alkylation processes is reduced when different polyalkylated aromatic compounds are first fractionated into separate streams enriched in these respective polyalkylated aromatic compounds, and the separate streams are sent to different transalkylation reaction zones, which may or may not be in the same reactor. The different transalkylation reaction zones allow for greater control of the transalkylation of the respective polyalkylated aromatic compounds, such as diisopropylbenzene (DIPB) and triisopropylbenzene (TIPB) that accompany the alkylation of benzene with propylene in a process for cumene production.

    摘要翻译: 当将不同的多烷基化芳族化合物首先分馏成富含这些各自的多烷基化芳族化合物的分离的流中时,芳族烷基化方法中的副产物形成降低,并且将分离的物流送入不同的烷基转移反应区,其可以是或不在同一个反应器中。 不同的烷基转移反应区可以更好地控制各种多烷基化芳族化合物如二异丙基苯(DIPB)和三异丙基苯(TIPB)在烷基化反应过程中伴随苯与丙烯烷基化反应的烷基转移。