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21.
公开(公告)号:US20100056831A1
公开(公告)日:2010-03-04
申请号:US12377162
申请日:2007-08-10
申请人: Juntao Liu , Siqing Zhong , Lei Li , Xiaoqi Xin
发明人: Juntao Liu , Siqing Zhong , Lei Li , Xiaoqi Xin
IPC分类号: C07C41/09
CPC分类号: C07C1/24 , C07C41/09 , Y02P30/42 , C07C11/04 , C07C43/043
摘要: The present invention discloses a process for the co-production of ethylene and dimethyl ether, comprising (i) providing a feedstock comprising ethanol and methanol, with a weight ratio of methanol to ethanol being in a range of from 1:10 to 10:1; (ii) feeding the feedstock into a reaction zone containing a solid catalyst to give an effluent, wherein a reaction temperature is in a range of from 200 to 480° C., a reaction pressure is in a range of from 0 to 2 MPa (gauge), and a weight hourly space velocity of the feedstock is in a range of from 0.1 to 10 h−1, and wherein the solid catalyst is selected from the group consisting of alumina catalysts and crystalline aluminosilicate catalysts; and (iii) isolating ethylene and dimethyl ether from the effluent from step (ii).
摘要翻译: 本发明公开了一种共生产乙烯和二甲醚的方法,其包括(i)提供包含乙醇和甲醇的原料,甲醇与乙醇的重量比为1:10至10:1 ; (ii)将原料进料到含有固体催化剂的反应区中,得到流出物,其中反应温度为200-480℃,反应压力为0-2MPa( 规格),并且原料的重时空速在0.1至10h -1的范围内,并且其中固体催化剂选自氧化铝催化剂和结晶硅铝酸盐催化剂; 和(iii)从步骤(ii)的流出物中分离乙烯和二甲醚。
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公开(公告)号:US08476469B2
公开(公告)日:2013-07-02
申请号:US13087285
申请日:2011-04-14
申请人: Juntao Liu , Weimin Yang , Wanmin Wang , Linna Zhang
发明人: Juntao Liu , Weimin Yang , Wanmin Wang , Linna Zhang
IPC分类号: C07C203/00
CPC分类号: C07C201/04 , C07C203/00
摘要: A process of producing C1-C4 alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO2 and unreacted NO; b) feeding the effluent I and C1-C4 alkanol into Reactor II, and reacting to produce an effluent II containing C1-C4 alkyl nitrite; and c) separating the effluent II containing C1-C4 alkyl nitrite to obtain C1-C4 alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N2O3 and NO2, wherein the molar number of NO is greater than that of NO2, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.
摘要翻译: 一种生产C1-C4烷基亚硝酸盐的方法,包括以下步骤:a)首先将氮氧化物和氧气加入到反应器I中,与铝硅酸盐催化剂接触,并产生含有NO 2和未反应的NO的流出物I; b)将流出物I和C 1 -C 4烷醇加入到反应器II中,并产生含有亚硝酸C1-C4烷基酯的流出物II; 和c)分离含有C1-C4烷基亚硝酸盐的流出物II,得到亚硝酸C1-C4烷基酯; 其中反应器I是固定床反应器,反应器II是旋转的高重力反应器; 步骤a)中的氮氧化物为NO,或含有NO和一种或多种N 2 O 3和NO 2的混合气体,其中NO的摩尔数大于NO 2的摩尔数(如果有的话)。 氮氧化物中的NO与氧的摩尔比为4-25:1。
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公开(公告)号:US08178734B2
公开(公告)日:2012-05-15
申请号:US12642621
申请日:2009-12-18
申请人: Juntao Liu , Weimin Yang , Fengxia Sun , Siqing Zhong , Wanmin Wang
发明人: Juntao Liu , Weimin Yang , Fengxia Sun , Siqing Zhong , Wanmin Wang
IPC分类号: C07C27/04
CPC分类号: B01J35/0006 , B01J21/08 , B01J23/72 , B01J23/745 , B01J23/78 , B01J23/80 , B01J23/868 , B01J23/8892 , B01J37/0201 , C07C29/149 , Y02P20/52 , C07C31/202
摘要: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.
摘要翻译: 提供了从草酸生产乙二醇的方法,其中使用串联的两个或更多个反应区,并且草酸进料进料阶段,或者氢原料和任选的溶剂进料阶段进料。 本发明方法对产物获得更高的选择性并提高催化剂的稳定性。
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24.
公开(公告)号:US20070038011A1
公开(公告)日:2007-02-15
申请号:US11503913
申请日:2006-08-15
申请人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Xiaofeng Chen
发明人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Xiaofeng Chen
IPC分类号: C07C4/02
CPC分类号: C07C11/02 , B01J2219/0004 , C07C1/20 , C07C2529/40 , Y02P20/52 , Y02P20/584 , Y02P30/42
摘要: The present invention provides a process for producing lower olefins from methanol or dimethyl ether. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high operation temperature, low yield and selectivity of lower olefins as the target products, and poor stability and short regeneration period of catalyst. The present process, which is carried out under the conditions of catalytic cracking methanol and dimethyl ether and the presence of diluting gas, and adopts as a feedstock methanol, dimethyl ether or their mixture, comprises the steps of: a) letting the feedstock firstly enter a first reaction zone to contact with a first crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a first reaction effluent containing lower olefins; b) letting the first reaction effluent enter in turn at least one second reaction zone to contact with a second crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a second reaction effluent containing lower olefins; and c) separating lower olefins from the second reaction effluent; wherein the weight ratio of the diluting gas to the feedstock is 0.01-6:1, while controlling the reaction conditions.
摘要翻译: 本发明提供了由甲醇或二甲醚生产低级烯烃的方法。 本发明主要解决的技术问题是克服现有技术中存在的缺点,包括作为目标产物的低级烯烃的高操作温度,低产率和选择性,以及催化剂的稳定性和较短的再生期。 本工艺在甲醇和二甲醚催化裂解条件下进行,稀释气体的存在,采用甲醇,二甲醚或其混合物为原料,包括以下步骤:a)使原料首先进入 与第一结晶硅铝酸盐催化剂接触的第一反应区,其具有至少10的SiO 2 / Al 2 O 3 N 3摩尔比,至少为10,至 从而产生含有低级烯烃的第一反应流出物; b)使第一反应流出物依次进入至少一个第二反应区以与具有SiO 2 / Al 2 O 3的第二结晶硅铝酸盐催化剂接触 摩尔比为至少10,从而产生含有低级烯烃的第二反应流出物; 和c)从第二反应流出物分离低级烯烃; 其中稀释气体与原料的重量比为0.01-6:1,同时控制反应条件。
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25.
公开(公告)号:US20070038010A1
公开(公告)日:2007-02-15
申请号:US11502520
申请日:2006-08-11
申请人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Yanhui Yuan , Huiming Zhang
发明人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Yanhui Yuan , Huiming Zhang
IPC分类号: C07C4/02
CPC分类号: C07C11/02 , C07C4/06 , C07C2529/18 , C07C2529/40 , C07C2529/70 , C10G2400/22 , Y02P20/584 , Y02P30/42
摘要: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including low yield and selectivity of lower olefins as the target products, and short regeneration period of catalyst. The present process, which is carried out under the conditions of catalytic cracking olefins and adopts as a feedstock an olefins-enriched mixture containing one or more C4 or higher olefins and optionally an organic oxygenate compound, comprises the steps of: a) letting the feedstock firstly enter a first reaction zone to contact with a first crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a first reaction effluent containing lower olefins; b) letting the first reaction effluent enter in turn at least one second reaction zone to contact with a second crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a second reaction effluent containing lower olefins; and c) separating lower olefins from the second reaction effluent; wherein the reaction temperatures in the first and second reaction zones are controlled. The present process, which desirably solves the above technical problem, can be used in industrial production of lower olefins.
摘要翻译: 本发明提供了一种通过催化裂化生产低级烯烃的方法,该原料包含含有C4或更高级烯烃和任选的有机含氧化合物的富含烯烃的混合物。 在本发明中主要解决的技术问题是克服现有技术中存在的缺点,包括低产率和低烯烃作为目标产物的选择性,催化剂的再生时间短。 本发明方法在催化裂化烯烃的条件下进行,并采用含有一种或多种C 4或更高级烯烃和任选的有机含氧化合物的富含烯烃的混合物作为原料,包括以下步骤:a) 首先进入第一反应区以与第一结晶硅铝酸盐催化剂接触,所述第一结晶硅铝酸盐催化剂的SiO 2 / Al 2 O 3 N 3摩尔比为至少10 ,从而产生含有低级烯烃的第一反应流出物; b)使第一反应流出物依次进入至少一个第二反应区以与具有SiO 2 / Al 2 O 3的第二结晶硅铝酸盐催化剂接触 摩尔比为至少10,从而产生含有低级烯烃的第二反应流出物; 和c)从第二反应流出物分离低级烯烃; 其中控制第一和第二反应区中的反应温度。 希望解决上述技术问题的本方法可用于低级烯烃的工业生产。
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公开(公告)号:US20150300592A1
公开(公告)日:2015-10-22
申请号:US14441093
申请日:2013-10-18
申请人: Juntao Liu
发明人: Juntao Liu
CPC分类号: F21V3/06 , F21S10/002 , F21V31/005 , F21V33/0036 , F21W2121/00
摘要: A decorative lamp of the present disclosure includes a housing, a circuit board arranged in the housing, a bottle arranged at a top part of the housing and containing liquid, a bottle stopper sealing a bottle opening of the bottle, and a head cover sleeved around the bottle stopper. A lamp is arranged on the circuit board, which avoids damage of the bottle stopper and makes the bottle stopper closely match with the bottle opening, thereby avoiding leakage of liquid due to looseness of the bottle stopper.
摘要翻译: 本公开的装饰灯包括壳体,布置在壳体中的电路板,布置在壳体的顶部并容纳液体的瓶子,密封瓶的瓶口的瓶塞,以及围绕 瓶塞。 电路板上布置有一个灯泡,避免了瓶塞的损坏,使瓶塞与瓶口紧密配合,从而避免了瓶塞松动导致的液体泄漏。
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公开(公告)号:US08921592B2
公开(公告)日:2014-12-30
申请号:US13702280
申请日:2011-06-09
申请人: Weimin Yang , Juntao Liu , Wanmin Wang , Lei Li
发明人: Weimin Yang , Juntao Liu , Wanmin Wang , Lei Li
摘要: A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C1-C4 alkanol and oxygen into a reactor II to be subjected to the reaction, and separating the resultant effluent to obtain the effluent IV of C1-C4 alkyl nitrites; c) introducing the effluent IV of C1-C4 alkyl nitrites and a CO gas stream into a coupling reactor where they are reacted to produce a NO containing effluent VI. The reactor I and/or the reactor II are preferably rotating supergravity reactors. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.
摘要翻译: 通过CO气相法制备草酸盐的方法包括以下步骤:a)首先将亚硝酸盐,水和无机酸引入反应器I中以产生含NO的流出物I; 并分离出所得的流出物,得到NO的流出物II; b)将NO,C1-C4链烷醇和氧气的流出物II引入待反应的反应器II中,并分离得到的流出物,得到C1-C4烷基亚硝酸盐的流出物IV; c)将C1-C4烷基亚硝酸盐的流出物IV和CO气流引入偶联反应器中,在其中反应生成含NO的流出物VI。 反应器I和/或反应器II优选为旋转超重力反应器。 因此,该方法适用于CO气相法工业生产草酸盐。
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28.
公开(公告)号:US08796499B2
公开(公告)日:2014-08-05
申请号:US12446308
申请日:2007-10-19
申请人: Zaiku Xie , Juntao Liu , Siqing Zhong , Huiming Zhang
发明人: Zaiku Xie , Juntao Liu , Siqing Zhong , Huiming Zhang
IPC分类号: C07C1/20
CPC分类号: C07C1/20 , C07C2529/40 , C07C2529/80 , C07C2529/85 , Y02P20/52 , Y02P30/42 , C07C11/06 , C07C11/04 , C07C11/02
摘要: A process for producing light olefins from methanol and/or dimethyl ether is disclosed. It comprises: (a) introducing a feed comprising methanol and/or dimethyl ether into a fluidized-bed reactor from its bottom, and contacting the feed in a dense phase zone and a transition zone of the fluidized-bed reactor with a catalyst, to form an effluent I comprising unreacted feed, reaction products and entrained solid particulate catalyst; (b) introducing a terminating agent consisting of water, alcohol, ether, hydrocarbons, and aromatic at upper portion of the transition zone and/or lower portion of a gas-solid separating zone of the fluidized-bed reactor into the effluent I, to give an effluent II; and (c) passing the effluent II into the gas-solid separating zone in upper portion of the fluidized-bed reactor, where gas-solid separation is accomplished to give a gaseous product stream and solid catalyst.
摘要翻译: 公开了一种从甲醇和/或二甲醚生产轻质烯烃的方法。 它包括:(a)从其底部将包含甲醇和/或二甲醚的进料引入流化床反应器中,并将所述进料在流化床反应器的致密相区和过渡区与催化剂接触, 形成包含未反应的进料,反应产物和夹带的固体颗粒催化剂的流出物I; (b)将流化床反应器的气固分离区的过渡区和/或下部的上部的水,醇,醚,烃和芳族化合物的终止剂引入流出物I中,至 给出流出物II; 和(c)将流出物II通入流化床反应器上部的气固分离区,其中进行气 - 固分离,得到气态产物流和固体催化剂。
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29.
公开(公告)号:US07692057B2
公开(公告)日:2010-04-06
申请号:US11502520
申请日:2006-08-11
申请人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Yanhui Yuan , Huiming Zhang
发明人: Zaiku Xie , Juntao Liu , Weimin Yang , Siqing Zhong , Yanhui Yuan , Huiming Zhang
CPC分类号: C07C11/02 , C07C4/06 , C07C2529/18 , C07C2529/40 , C07C2529/70 , C10G2400/22 , Y02P20/584 , Y02P30/42
摘要: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including low yield and selectivity of lower olefins as the target products, and short regeneration period of catalyst. The present process, which is carried out under the conditions of catalytic cracking olefins and adopts as a feedstock an olefins-enriched mixture containing one or more C4 or higher olefins and optionally an organic oxygenate compound, comprises the steps of: a) letting the feedstock firstly enter a first reaction zone to contact with a first crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a first reaction effluent containing lower olefins; b) letting the first reaction effluent enter in turn at least one second reaction zone to contact with a second crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a second reaction effluent containing lower olefins; and c) separating lower olefins from the second reaction effluent; wherein the reaction temperatures in the first and second reaction zones are controlled. The present process, which desirably solves the above technical problem, can be used in industrial production of lower olefins.
摘要翻译: 本发明提供了一种通过催化裂化生产低级烯烃的方法,该原料包含含有C4或更高级烯烃和任选的有机含氧化合物的富含烯烃的混合物。 在本发明中主要解决的技术问题是克服现有技术中存在的缺点,包括低产率和低烯烃作为目标产物的选择性,催化剂的再生时间短。 本发明方法在催化裂化烯烃的条件下进行,并采用含有一种或多种C 4或更高级烯烃和任选的有机含氧化合物的富含烯烃的混合物作为原料,包括以下步骤:a) 首先进入与SiO 2 / Al 2 O 3摩尔比为至少10的第一结晶硅铝酸盐催化剂接触的第一反应区,从而产生含有低级烯烃的第一反应流出物; b)使第一反应流出物依次进入至少一个第二反应区,以与SiO 2 / Al 2 O 3摩尔比为至少10的第二结晶硅铝酸盐催化剂接触,从而产生含有低级烯烃的第二反应流出物; 和c)从第二反应流出物分离低级烯烃; 其中控制第一和第二反应区中的反应温度。 希望解决上述技术问题的本方法可用于低级烯烃的工业生产。
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30.
公开(公告)号:US20100063335A1
公开(公告)日:2010-03-11
申请号:US12446308
申请日:2007-10-19
申请人: Zaiku Xie , Juntao Liu , Siqing Zhong , Huiming Zhang
发明人: Zaiku Xie , Juntao Liu , Siqing Zhong , Huiming Zhang
IPC分类号: C07C1/20
CPC分类号: C07C1/20 , C07C2529/40 , C07C2529/80 , C07C2529/85 , Y02P20/52 , Y02P30/42 , C07C11/06 , C07C11/04 , C07C11/02
摘要: A process for producing light olefins from methanol and/or dimethyl ether comprising the steps of: (a) introducing a feed comprising methanol and/or dimethyl ether into a fluidized-bed reactor from its bottom, and reacting the feed in a dense phase zone and a transition zone of the fluidized-bed reactor by contacting it with a catalyst, to form an effluent I comprising unreacted feed, reaction products and entrained solid particulate catalyst; (b) introducing a terminating agent at upper portion of the transition zone and/or lower portion of a gas-solid separating zone of the fluidized-bed reactor into the effluent I, to give an effluent II, wherein the terminating agent is at least one selected from the group consisting of water, C2 to C5 alcohols, C2 to C10 ethers, hydrocarbons having 4 or more carbon atoms, and C6 to C12 aromatic hydrocarbons; and (c) passing the effluent II into the gas-solid separating zone in upper portion of the fluidized-bed reactor, where gas-solid separation is accomplished to give a gaseous product stream and solid catalyst, said gaseous product stream being leaded to an aftertreatment stage, and said solid catalyst being circulated to the dense phase zone in lower portion of the fluidized-bed reactor or, alternatively, being leaded to a regenerator after having been stripped in a stripper, is disclosed.
摘要翻译: 一种从甲醇和/或二甲醚生产轻质烯烃的方法,包括以下步骤:(a)从其底部向流化床反应器中引入包含甲醇和/或二甲醚的进料,并使进料在致密相区 和流化床反应器的过渡区,其与催化剂接触,形成包含未反应的进料,反应产物和夹带的固体颗粒催化剂的流出物I; (b)将流化床反应器的气固分离区的过渡区域的上部和/或下部的终止剂引入流出物I中,得到流出物II,其中终止剂至少为 选自水,C 2至C 5醇,C 2至C 10醚,具有4个或更多个碳原子的烃和C 6至C 12芳族烃组成的组中的一种; 和(c)将流出物II通入流化床反应器上部的气固分离区,其中进行气 - 固分离以产生气态产物流和固体催化剂,所述气态产物流被引导至 后处理阶段,并且所述固体催化剂循环到流化床反应器的下部的致密相区,或者替代地,在汽提器中被汽提之后引入再生器。
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