PROCESSES AND SYSTEMS FOR PRODUCING DESULFURIZED ALPHA OLEFINS

    公开(公告)号:US20240218269A1

    公开(公告)日:2024-07-04

    申请号:US18149458

    申请日:2023-01-03

    发明人: Ki-Hyouk Choi

    IPC分类号: C10G65/12 C10G7/08 C10G65/06

    摘要: A process for producing desulfurized alpha olefins may include reacting a conjugated diene compound and a hydrocarbon oil stream including alpha olefins in a Diels-Alder reactor at a temperature of 100° C. to 250° C. to form an effluent stream including adducts of the conjugated diene compound and the alpha olefins, subjecting the effluent stream to a hydrodesulfurization catalyst and a hydrogen stream in a hydrodesulfurization reactor to produce a hydrodesulfurized effluent stream including the adducts, a saturated C5+ hydrocarbon stream, and a gaseous stream, separating the adducts, the saturated C5+ hydrocarbon stream, and the gaseous stream, and cracking the adducts in a first thermal cracking reactor operating at a temperature greater than 250° C. to produce a decomposed adducts stream including an alpha olefin stream and a recovered conjugated diene compound stream, wherein the gaseous stream includes hydrogen, sulfides, C1-C4 saturated hydrocarbons, or combinations thereof.

    Selective olefin extraction
    3.
    发明授权
    Selective olefin extraction 有权
    选择性烯烃提取

    公开(公告)号:US09409838B2

    公开(公告)日:2016-08-09

    申请号:US14058607

    申请日:2013-10-21

    摘要: A process and system for separating butenes and butanes by extractive distillation using a polar solvent is disclosed. The process may include: contacting a hydrocarbon mixture including butanes and butenes with a lean solvent mixture in an extractive distillation column to form an enriched solvent fraction comprising butenes; recovering an overheads fraction comprising butanes and a bottoms fraction from the extractive distillation column; feeding the bottoms fraction to a stripper including a stripping section and a wash section; recovering the lean solvent mixture as a bottoms fraction and a stripper overheads fraction comprising butenes and water from the stripper; condensing the overheads fraction to form a water fraction and a product butenes fraction; feeding water as reflux to a top of the stripper wash section; feeding at least a portion of the condensed water fraction intermediate the top and bottom of the stripper wash section as a second reflux.

    摘要翻译: 公开了一种使用极性溶剂通过萃取蒸馏分离丁烯和丁烷的方法和系统。 该方法可以包括:将包含丁烷和丁烯的烃混合物与萃取蒸馏塔中的贫溶剂混合物接触以形成包含丁烯的富集溶剂馏分; 从萃取蒸馏塔回收包含丁烷和塔底馏分的塔顶馏分; 将塔底馏分进料到包括汽提段和洗涤段的汽提塔中; 回收作为底部馏分的贫溶剂混合物和从汽提器中除去含有丁烯和水的汽提塔顶馏分; 冷凝塔顶馏分以形成水分和产物丁烯级分; 将水作为回流进料至脱胶器洗涤部分的顶部; 将至少一部分冷凝水部分作为第二回流供入汽提器洗涤部分的顶部和底部。

    PREPARATORY HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC (HPLC) SEPARATION SYSTEM AND TECHNIQUE FOR QUANTITATIVE FRACTIONATION OF TOTAL VACUUM RESID
    4.
    发明申请
    PREPARATORY HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC (HPLC) SEPARATION SYSTEM AND TECHNIQUE FOR QUANTITATIVE FRACTIONATION OF TOTAL VACUUM RESID 审中-公开
    制备高性能液相色谱(HPLC)分离系统和定量分离总真菌残留的技术

    公开(公告)号:US20140166542A1

    公开(公告)日:2014-06-19

    申请号:US13718064

    申请日:2012-12-18

    发明人: Birbal CHAWLA

    IPC分类号: C10G7/08 G01N30/02

    摘要: A method and system for conducting chromatographic analysis of a total vacuum resid to provide quantification of eight classes of compounds (i.e., asphaltenes, saturates, 1-4+ ring aromatics, sulfides, and polars) contained within the total vacuum resid without prior de-asphalting are disclosed. The system is also capable of conducting chromatographic analysis of a vacuum gas oils and de-asphalted oils to provide quantification of seven classes of compounds (i.e., saturates, 1-4+ ring aromatics, sulfides, and polars). The system is also capable of conducting chromatographic analysis of a resid to identity the presence of and provide quantification of asphaltenes.

    摘要翻译: 用于进行总真空渣油色谱分析的方法和系统,以提供包含在总真空渣油中的八类化合物(即沥青质,饱和物,1-4 +环芳烃,硫化物和极性)的定量, 公开沥青。 该系统还能够对真空瓦斯油和去油脂油进行色谱分析,以提供七类化合物(即饱和物,1-4 +环芳烃,硫化物和极性)的定量。 该系统还能够对残留物进行色谱分析,以识别沥青质的存在并提供沥青质的定量。

    SELECTIVE OLEFIN EXTRACTION
    5.
    发明申请
    SELECTIVE OLEFIN EXTRACTION 有权
    选择性烯醇提取

    公开(公告)号:US20140124358A1

    公开(公告)日:2014-05-08

    申请号:US14058607

    申请日:2013-10-21

    IPC分类号: C07C7/08

    摘要: A process and system for separating butenes and butanes by extractive distillation using a polar solvent is disclosed. The process may include: contacting a hydrocarbon mixture including butanes and butenes with a lean solvent mixture in an extractive distillation column to form an enriched solvent fraction comprising butenes; recovering an overheads fraction comprising butanes and a bottoms fraction from the extractive distillation column; feeding the bottoms fraction to a stripper including a stripping section and a wash section; recovering the lean solvent mixture as a bottoms fraction and a stripper overheads fraction comprising butenes and water from the stripper; condensing the overheads fraction to form a water fraction and a product butenes fraction; feeding water as reflux to a top of the stripper wash section; feeding at least a portion of the condensed water fraction intermediate the top and bottom of the stripper wash section as a second reflux.

    摘要翻译: 公开了一种使用极性溶剂通过萃取蒸馏分离丁烯和丁烷的方法和系统。 该方法可以包括:将包含丁烷和丁烯的烃混合物与萃取蒸馏塔中的贫溶剂混合物接触以形成包含丁烯的富集溶剂馏分; 从萃取蒸馏塔回收包含丁烷和塔底馏分的塔顶馏分; 将塔底馏分进料到包括汽提段和洗涤段的汽提塔中; 回收作为底部馏分的贫溶剂混合物和从汽提器中除去含有丁烯和水的汽提塔顶馏分; 冷凝塔顶馏分以形成水分和产物丁烯级分; 将水作为回流进料至脱胶器洗涤部分的顶部; 将至少一部分冷凝水部分作为第二回流供入汽提器洗涤部分的顶部和底部。

    PROCESS FOR PREPARING LOWER OLEFINS
    6.
    发明申请
    PROCESS FOR PREPARING LOWER OLEFINS 审中-公开
    制备低油脂的方法

    公开(公告)号:US20130172627A1

    公开(公告)日:2013-07-04

    申请号:US13727863

    申请日:2012-12-27

    申请人: Shell Oil Company

    IPC分类号: C07C1/22 C07C41/06 C07C4/04

    摘要: The invention is a process for preparing lower olefins comprising: a) steam cracking a paraffinic feedstock to obtain a cracker effluent comprising olefins and saturated and unsaturated C4 hydrocarbons; b) contacting an oxygenate feedstock with a molecular sieve-comprising catalyst, at a temperature in the range of from 350 to 1000° C. to obtain an oxygenate conversion effluent comprising olefins and saturated and unsaturated C4 hydrocarbons; c) subjecting the cracker effluent and the oxygenate conversion effluent to one or more separation steps such that an olefin product stream comprising ethylene and/or propylene, and a stream comprising saturated and unsaturated C4 hydrocarbons are obtained; and d) subjecting part of the stream comprising C4 hydrocarbons from both the cracker effluent and the oxygenate conversion effluent to extractive distillation to obtain a stream enriched in unsaturated C4 hydrocarbons and a stream enriched in saturated C4 hydrocarbons.

    摘要翻译: 本发明是一种制备低级烯烃的方法,包括:a)蒸汽裂解链烷烃原料以获得包含烯烃和饱和和不饱和C4烃的裂化器流出物; b)使含氧化合物原料与含分子筛的催化剂在350至1000℃的温度下接触,以获得包含烯烃和饱和和不饱和C4烃的含氧化合物转化流出物; c)使裂解液流出物和含氧化合物转化流出物经历一个或多个分离步骤,使得获得包含乙烯和/或丙烯的烯烃产物流和包含饱和和不饱和C4烃的物流; 和d)使来自裂化器流出物和含氧化合物转化流出物的包含C4烃的部分物流进行萃取蒸馏,以获得富含不饱和C 4烃的物流和富含饱和C 4烃的物流。

    Method for obtaining aromatic hydrocarbons from a hydrocarbon mixture
    7.
    发明授权
    Method for obtaining aromatic hydrocarbons from a hydrocarbon mixture 失效
    从烃混合物中获得芳烃的方法

    公开(公告)号:US08378164B2

    公开(公告)日:2013-02-19

    申请号:US12680563

    申请日:2008-09-22

    IPC分类号: C07C7/08

    摘要: Processes for obtaining aromatic hydrocarbons from a hydrocarbon mixture a1. Mixture a1 is extractively distilled with extractive solvent a2 producing mixture bl comprising solvent a2, aromatic hydrocarbons and high boilers, and nonaromatic hydrocarbon mixture b2. Mixture b1 is distilled to aromatic hydrocarbon c1 and solvent comprising high boilers c2. Substream dl is removed from c2 and c2 is recycled to extractive distillation. Substream d1 is extracted with water producing aqueous phase e1 and organic phase e2. Aqueous phase e1 is distilled and purified solvent a2 is recovered and recycled into extractive distillation of mixture b1. Substream e2′ is removed from organic phase e2 and recycled into extractive distillation of mixture b1. The amount of organic phase e2′ is such that when d1 comprising solvent, high boilers, water and circulated stream e2′ is dispersed, aqueous extract phase e1, forms a disperse phase and organic phase e2 a continuous phase.

    摘要翻译: 从烃混合物中获得芳烃的方法a1。 混合物a1用包含溶剂a2,芳烃和高锅炉的萃取溶剂a2生产混合物b1和非芳烃混合物b2进行萃取蒸馏。 将混合物b1蒸馏至芳烃c1和包含高锅炉c2的溶剂。 从c2中除去子流d1,并将c2再循环至萃取蒸馏。 用生产水相e1和有机相e2的水提取子流d1。 蒸馏水相e1,回收纯化的溶剂a2并循环到混合物b1的萃取蒸馏中。 从有机相e2中除去子流e2'并循环到混合物b1的萃取蒸馏中。 有机相e2'的量使得当包含溶剂,高锅炉,水和循环流e2'的d1分散时,含水萃取相e1形成分散相,有机相e2为连续相。

    METHOD FOR OBTAINING AROMATIC HYDROCARBONS FROM A HYDROCARBON MIXTURE
    8.
    发明申请
    METHOD FOR OBTAINING AROMATIC HYDROCARBONS FROM A HYDROCARBON MIXTURE 失效
    从油气混合物中获取芳香烃的方法

    公开(公告)号:US20100228072A1

    公开(公告)日:2010-09-09

    申请号:US12680563

    申请日:2008-09-22

    IPC分类号: C07C7/05

    摘要: The invention relates to a process for obtaining aromatic hydrocarbons selected from benzene, toluene, xylene and ethylbenzene and mixtures thereof from a hydrocarbon mixture which additionally comprises nonaromatic hydrocarbons and high boilers, comprising the steps of(A) providing a hydrocarbon mixture a1 and an extractive solvent a2 composed of N-formylmorpholine,(B) extractively distilling the hydrocarbon mixture a1 with the extractive solvent to obtain a mixture b1 of extractive solvent and the aromatic hydrocarbons, said mixture comprising high boilers, and a mixture b2 comprising nonaromatic hydrocarbons,(C) distilling the mixture b1 of extractive solvent and aromatic hydrocarbons obtained in step (B) to obtain one or more fractions c1 composed of aromatic hydrocarbons and the extractive solvent c2 which comprises high boilers,(D) removing a substream d1 from the extractive solvent c2 and recycling the extractive solvent c2 into the extractive distillation (B),(E) extracting the substream d1 of the extractive solvent with water to obtain an aqueous extract phase e1 essentially free of high boilers and an organic phase e2 comprising the high boilers,(F) distilling the aqueous extract phase e1 and recovering the extractive solvent a2 in purified form, and recycling the extractive solvent into the extractive distillation (B),wherein a substream e2′ is removed from the organic phase e2 comprising the high boilers and recycled into the extraction of step (E), the amount of the organic phase e2′ thus circulated being such that, when the substream d1 composed of extractive solvent comprising high boilers, water and circulated stream e2′ is dispersed, the aqueous extract phase e1 essentially freed of high boilers forms as a disperse phase, and the organic phase composed of high boilers e2 as a continuous phase.

    摘要翻译: 本发明涉及一种从烃混合物中获得选自苯,甲苯,二甲苯和乙苯的芳香烃及其混合物的方法,该烃混合物还包含非芳族烃和高沸点物,其包括以下步骤:(A)提供烃混合物a1和萃取物 (B)用萃取溶剂萃取出烃混合物a1,得到萃取溶剂和芳香烃的混合物b1,所述混合物包括高沸点物,和包含非芳族烃的混合物(C 蒸馏步骤(B)中获得的萃取溶剂和芳烃的混合物b1,得到一种或多种由芳烃组成的馏分c1和包含高锅炉的萃取溶剂c2,(D)从萃取溶剂c2中除去一个子流d1 并将提取溶剂c2回收到萃取蒸馏(B),(E)提取物中 用水萃取溶剂的底流d1,以获得基本上不含高锅炉的含水萃取相e1和包含高锅炉的有机相e2,(F)蒸馏水萃取相e1并回收纯化形式的萃取溶剂a2 ,并将萃取溶剂回收到萃取蒸馏(B)中,其中从包括高锅炉的有机相e2中除去子流e2'并再循环到步骤(E)的萃取中,因此有机相e2'的量 循环使得当由包括高锅炉,水和循环流e2'的萃取溶剂组成的子流d1分散时,基本上不含高锅炉的水提取相e1形成分散相,由高沸点组成的有机相 e2作为连续相。

    EXTRACTIVE DISTILLATION PROCESS FOR RECOVERING AROMATICS FROM PETROLEUM STREAMS
    9.
    发明申请
    EXTRACTIVE DISTILLATION PROCESS FOR RECOVERING AROMATICS FROM PETROLEUM STREAMS 有权
    从石油回收回收芳烃的提取蒸馏工艺

    公开(公告)号:US20090038991A1

    公开(公告)日:2009-02-12

    申请号:US11837459

    申请日:2007-08-10

    IPC分类号: C10G51/02 B01J8/04

    CPC分类号: B01D3/40 C10G7/08

    摘要: The present invention relates to a process for recovering polar hydrocarbons from non-polar hydrocarbons, such as aromatics from non-aromatics, naphthenes from paraffins and isoparaffins, or olefins from paraffins and isoparaffins, in feed mixtures containing at least a measurable amount of heavier hydrocarbons. According to the invention, an improved extractive distillation (ED) process is disclosed for recovering aromatic hydrocarbons including benzene, toluene, and xylenes (BTX aromatics) from the C6-C8 petroleum streams containing at least a measurable amount of C9+ hydrocarbons.The invention also relates to an improved ED process for recovering mainly benzene and toluene from the C6-C7 petroleum streams containing at least a measurable amount of C8+ hydrocarbons. This invention is further directed toward the regeneration and recovery of the ED solvent utilized to recover and purify the aromatic hydrocarbons from the petroleum stream containing at least a measurable amount of hydrocarbons heavier than intend feedstock.

    摘要翻译: 本发明涉及一种从非极性烃中回收极性烃的方法,例如来自非芳族化合物的芳族化合物,来自烷烃和异链烷烃的环烷烃,或来自链烷烃和异链烷烃的烯烃在含有至少可测量量的较重烃 。 根据本发明,公开了一种改进的萃取蒸馏(ED)方法,用于从含有至少可测量量的C 9+烃的C6-C8石油流中回收包括苯,甲苯和二甲苯(BTX芳族化合物)的芳烃。 本发明还涉及一种改进的ED方法,主要从含有至少可测量量的C8 +烃的C6-C7石油流中回收苯和甲苯。 本发明进一步涉及用于回收和纯化来自含有至少可测量量的比目标原料重的烃的石油流中的芳烃的ED溶剂的再生和回收。

    Mercury-removal process in distillation tower
    10.
    发明申请
    Mercury-removal process in distillation tower 有权
    蒸馏塔中的汞去除工艺

    公开(公告)号:US20050167335A1

    公开(公告)日:2005-08-04

    申请号:US11043751

    申请日:2005-01-26

    摘要: A top temperature T1 of a distillation tower 1 is held below a liquefying temperature of a light fraction by returning a part of an exhaust gas W, which is cooled by a condenser 5, to the upper zone of the distillation tower 1. A bottom temperature T2 is raised up to 300° C. at highest by returning a part of a liquid product P from a re-boiler 3 to a lower zone of the distillation tower 1. When a liquid hydrocarbon L comes in countercurrent contact with a stripping gas G inside the distillation tower 1 with the temperature profile that an inner temperature gradually falls down along an upward direction, mercury is efficiently transferred from the liquid L to a vapor phase without effusion of the light fraction in accompaniment with the exhaust gas W.

    摘要翻译: 通过将由冷凝器5冷却的废气W的一部分返回到蒸馏塔1的上部区域,蒸馏塔1的顶部温度T 1保持在轻馏分的液化温度以下 蒸馏塔1.通过将一部分液体产物P从再沸器3返回至蒸馏塔的下部区域,塔底温度T 2升高至最高为300℃ 当液体烃L与内部温度沿着向上的方向逐渐下降的温度分布与蒸馏塔1内的汽提气体G逆流接触时,水银从液体L有效地转移到气相,而没有 轻馏分伴随排气瓦斯的渗出。