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1. 发明授权

US07875756B2 Process for producing lower olefins under negative pressure 有权
标题翻译：在负压下生产低级烯烃的方法
公开(公告)号：US07875756B2
公开(公告)日：2011-01-25
申请号：US11990401
申请日：2006-08-09
申请人： Zaiku Xie , Juntao Liu , Siqing Zhong , Wenwei Wu
发明人： Zaiku Xie , Juntao Liu , Siqing Zhong , Wenwei Wu
IPC分类号： C07C4/06
CPC分类号： C07C4/06 , C07C4/02 , Y02P20/52 , Y02P20/584 , C07C11/02 , C07C11/06 , C07C11/04
摘要： A process for producing lower olefins is disclosed. The technical problem is to overcome the defects presented in the prior art including high reaction pressure, high reaction temperature, low yield and selectivity of lower olefins as the target products, poor stability and short life of catalyst, and limited suitable feedstocks. The disclosed 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 contact with a crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a reaction effluent containing lower olefins; and b) separating lower olefins from the reaction effluent; wherein, the reaction pressure is from −0.1 MPa to
摘要翻译：公开了生产低级烯烃的方法。技术问题是克服现有技术中存在的缺点，包括高反应压力，高反应温度，低产物和作为目标产物的低级烯烃的选择性，催化剂的稳定性和寿命短，以及有限的合适原料。所公开的方法，其在催化裂化烯烃的条件下进行，并且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）与SiO 2 / Al 2 O 3摩尔比为至少10的结晶硅铝酸盐催化剂接触，从而产生含有低级烯烃的反应流出物; 和b）从反应流出物中分离低级烯烃; 其中反应压力为-0.1MPa至<0MPa。

2. 发明申请

US20090105512A1 Process for producing lower olefins under negative pressure 有权
标题翻译：在负压下生产低级烯烃的方法
公开(公告)号：US20090105512A1
公开(公告)日：2009-04-23
申请号：US11990401
申请日：2006-08-09
申请人： Zaiku Xie , Juntao Liu , Siqing Zhong , Wenwei Wu
发明人： Zaiku Xie , Juntao Liu , Siqing Zhong , Wenwei Wu
IPC分类号： C07C4/02
CPC分类号： C07C4/06 , C07C4/02 , Y02P20/52 , Y02P20/584 , C07C11/02 , C07C11/06 , C07C11/04
摘要： The present invention provides a process for producing lower olefins. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high reaction pressure, high reaction temperature, low yield and selectivity of lower olefins as the target products, poor stability and short life of catalyst, and limited suitable feedstocks. 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 contact with a crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a reaction effluent containing lower olefins; and b) separating lower olefins from the reaction effluent; wherein, the reaction pressure is from −0.1 MPa to
摘要翻译：本发明提供一种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，包括高反应压力，高反应温度，低产物和低级烯烃作为目标产物的选择性，稳定性差和催化剂寿命短等缺陷合适的原料。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）与SiO 2 / Al 2 O 3摩尔比为至少10的结晶硅铝酸盐催化剂接触，从而产生含有低级烯烃的反应流出物; 和b）从反应流出物中分离低级烯烃; 其中反应压力为-0.1MPa至<0MPa。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。

3. 发明授权

US07692056B2 Process for producing lower olefins from methanol or dimethylether 有权
标题翻译：从甲醇或二甲醚生产低级烯烃的方法
公开(公告)号：US07692056B2
公开(公告)日：2010-04-06
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
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SiO 2 / Al 2 O 3摩尔比至少为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; 其中稀释气体与原料的重量比为0.01-6:1，同时控制反应条件。

4. 发明申请

US20070038011A1 Process for producing lower olefins from methanol or dimethylether 有权
标题翻译：从甲醇或二甲醚生产低级烯烃的方法
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。

5. 发明申请

US20070038010A1 Process for producing lower olefins by using multiple reaction zones 有权
标题翻译：通过使用多个反应区生产低级烯烃的方法
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。

6. 发明授权

US08796499B2 Process for producing light olefins from methanol or dimethyl ether 有权
标题翻译：从甲醇或二甲醚生产轻质烯烃的方法
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。

7. 发明授权

US07692057B2 Process for producing lower olefins by using multiple reaction zones 有权
标题翻译：通过使用多个反应区生产低级烯烃的方法
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
IPC分类号： C07C4/02 , C10G51/04 , C10G11/05
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。

8. 发明申请

US20100063335A1 PROCESS FOR PRODUCING LIGHT OLEFINS FROM METHANOL OR DIMETHYL ETHER 有权
标题翻译：从甲醇或二甲醚生产轻质烯烃的方法
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。

9. 发明申请

US20100145125A1 PROCESS OF PRODUCING LIGHT OLEFINS THROUGH THE CONVERSION OF METHANOL AND ETHANOL 审中-公开
标题翻译：通过甲醇和乙醇的转化生产光油的方法
公开(公告)号：US20100145125A1
公开(公告)日：2010-06-10
申请号：US12526408
申请日：2008-02-04
申请人： Zaiku Xie , Guozhen Qi , Huiming Zhang , Siqing Zhong
发明人： Zaiku Xie , Guozhen Qi , Huiming Zhang , Siqing Zhong
IPC分类号： C07C1/20
CPC分类号： C07C1/24 , Y02P20/52 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： The present invention discloses a process of producing light olefins through the conversion of methanol and ethanol. The process comprises: feeding a first portion of a feed via a distributor at the bottom of a fluidized-bed reactor to a reaction zone containing a catalyst; feeding a second portion of the feed from at least one location above the distributor to the reaction zone; contacting the feed with the catalyst and allowing it to react, to give a stream containing ethylene and propylene; and withdrawing the stream containing ethylene and propylene from the top of the reactor, and passing it to a separation system to separate ethylene and propylene, wherein the first portion of the feed and the second portion of the feed comprises each independently methanol or ethanol or the both, with a proviso that the total feed comprises both methanol and ethanol, and a weight ratio of methanol to ethanol in the total feed is in a range of from 99:1 to 0.1:1.
摘要翻译：本发明公开了通过甲醇和乙醇的转化生产轻质烯烃的方法。该方法包括：通过流化床反应器底部的分配器将进料的第一部分进料到含有催化剂的反应区; 将进料的第二部分从分配器上方的至少一个位置进料到反应区; 使进料与催化剂接触并使其反应，得到含有乙烯和丙烯的料流; 并从反应器顶部排出含有乙烯和丙烯的料流，并将其送入分离系统以分离乙烯和丙烯，其中进料的第一部分和进料的第二部分各自独立地包括甲醇或乙醇或两者，条件是总进料包括甲醇和乙醇，并且总进料中甲醇与乙醇的重量比在99:1至0.1:1的范围内。

10. 发明授权

US08304594B2 Process for increasing ethylene and/or propylene yield during conversion of oxygenates 有权
标题翻译：在含氧化合物转化期间提高乙烯和/或丙烯产率的方法
公开(公告)号：US08304594B2
公开(公告)日：2012-11-06
申请号：US12669373
申请日：2008-07-17
申请人： Zaiku Xie , Guozhen Qi , Weimin Yang , Siqing Zhong
发明人： Zaiku Xie , Guozhen Qi , Weimin Yang , Siqing Zhong
IPC分类号： C07C1/00
CPC分类号： C07C1/20 , C07C2529/85 , Y02P20/52 , Y02P20/584 , Y02P30/42 , C07C11/04 , C07C11/06
摘要： The present invention provides a process for increasing ethylene and/or propylene yield during conversion of oxygenates using a system comprising a reactor and a regenerator, wherein the reactor comprises a fluidized bed reactor and a riser reactor, which process increases ethylene and/or propylene yield by using a mixture of the deactivated catalyst from the fluidized bed reactor and the regenerated catalyst from the regenerator in the riser reactor for further cracking the C4+ hydrocarbon stream separated from the product stream.
摘要翻译：本发明提供一种使用包含反应器和再生器的系统在含氧化合物转化期间提高乙烯和/或丙烯产率的方法，其中反应器包括流化床反应器和提升管反应器，该方法提高了乙烯和/或丙烯产率通过使用来自流化床反应器的失活的催化剂和来自提升管反应器中的再生器的再生催化剂的混合物进一步裂化从产物流分离的C4 +烃流。

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