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1.发明申请METHOD FOR PRODUCING BUTADIENE THROUGH OXIDATIVE DEHYDROGENATION REACTION (As Amended) 有权通过氧化脱氢反应生产丁二烯的方法（如修改）公开(公告)号：US20160289145A1
公开(公告)日：2016-10-06
申请号：US15034815
申请日：2015-05-15
申请人： LG CHEM, LTD.
发明人： Jae Ik LEE , Jeong Seok LEE , Mi Kyung KIM , Dae Hyeon KIM , Jong Ku LEE
CPC分类号： C07C5/48 , C07C7/005 , C07C7/04 , C07C2523/18 , C07C2523/28 , C07C2523/31 , C07C11/167
摘要： The present invention relates to a method for producing butadiene through an oxidative dehydrogenation reaction. The production method according to the present invention may easily regulate an input ratio between oxygen and nitrogen that are used as raw material, such that a loss may be minimized of butadiene that is included in a second fraction stream (purge stream) and discharged to outside of the system. Consequently, an economic competitiveness of the process, such as a reduced raw material cost and an improved productivity may be realized.
摘要翻译： 本发明涉及通过氧化脱氢反应生产丁二烯的方法。 根据本发明的制造方法可以容易地调节用作原料的氧和氮之间的输入比例，使得包含在第二级分流（净化流）中并排放到外部的丁二烯的损失可能最小化 的系统。 因此，可以实现过程的经济竞争力，例如降低的原材料成本和提高的生产率。
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公开(公告)号：US20200283356A1
公开(公告)日：2020-09-10
申请号：US16885134
申请日：2020-05-27
申请人： LG CHEM, LTD.
发明人： Jae Ik LEE , Eun Kyo KIM , Mi Kyung KIM , Jeong Seok LEE
摘要： Provided is a device for preparing butadiene. The device includes an oxidative dehydrogenation reaction part, in which oxidative dehydrogenation of reaction raw materials containing butene, oxygen (O2), steam, and a diluent gas is performed to obtain oxidative dehydrogenation reaction products containing butadiene; a cooling separation part for removing water from the reaction products; a condensation separation part for condensing hydrocarbons from the reaction products from which water is removed; an absorption separation part for recovering all hydrocarbons from the reaction products containing hydrocarbons not condensed in the condensation separation part; and a purification part for separating butadiene from crude hydrocarbons condensed in the condensation separation part, wherein n-butane remaining after butadiene is separated in the purification part is fed again into the oxidative dehydrogenation reaction part. The device can provide high-purity butadiene while reducing energy consumption and raw material and production costs, thereby improving economic efficiency of processes.
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3.发明申请公开(公告)号：US20160326071A1
公开(公告)日：2016-11-10
申请号：US15110666
申请日：2015-06-09
申请人： LG CHEM, LTD.
发明人： Mi Kyung KIM , Jeong Seok LEE , Jae Ik LEE , Dae Hyeon KIM , Jong Ku LEE
CPC分类号： C07C7/11 , C07C5/48 , C07C2523/18 , C07C2523/28 , C07C2523/31 , C07C11/167
摘要： The present invention relates to a method for producing butadiene through an oxidative dehydrogenation reaction, the method including steps of a) introducing a first stream which includes C4 fraction, steam, oxygen (O2), and nitrogen (N2) into a reactor which is filled with catalyst to perform oxidative dehydrogenation reaction; b) selectively absorbing butadiene, which is obtained from the reactor, into an absorption solvent, and separating and removing C4 mixture other than the dutadiene and light gas product; and c) recovering and purifying the butadiene. Through integration of the gas separating and purifying steps by using the single absorption solvent during production of butadiene, equipment costs and operating costs accruing from repeated introduction and removal of solvent are reduced, thereby ensuring economic competitiveness of the process.
摘要翻译： 本发明涉及通过氧化脱氢反应生产丁二烯的方法，该方法包括以下步骤：a）将包含C4馏分，蒸汽，氧气（O 2）和氮气（N 2）的第一流引入填充的反应器中 用催化剂进行氧化脱氢反应; b）选择性地将从反应器获得的丁二烯吸收到吸收溶剂中，以及除去二丁二烯和轻质气体产物之外的C4混合物; 和c）回收和纯化丁二烯。 通过在丁二烯生产过程中通过使用单一吸收溶剂来整合气体分离和纯化步骤，降低了反复引入和除去溶剂所产生的设备成本和运行成本，从而确保了该方法的经济竞争力。
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4.发明申请METHOD OF RECYCLING ENERGY IN PROCESS OF BUTADIENE PREPARATION (As Amended) 审中-公开二苯乙烯制备方法回收能量的方法（经修改）公开(公告)号：US20160319704A1
公开(公告)日：2016-11-03
申请号：US15108519
申请日：2015-07-02
申请人： LG CHEM, LTD.
发明人： Mi Kyung KIM , Jeong Seok LEE , Jae Ik LEE , Dae Hyeon KIM , Jong Ku LEE
CPC分类号： F01K25/14 , C07C5/48 , C07C7/00 , C07C7/04 , F01D15/10 , F01D25/08 , F01K5/00 , F01K7/16 , F05D2260/213 , H02N11/00
摘要： Provided is a method for recycling energy in process of butadiene preparation, which includes, in the process of preparing butadiene using oxidative dehydrogenation reaction, steps of: a) supplying part or all of a light gas discharged from a solvent absorption tower to a turbine to produce electricity; b) passing the light gas passed through the turbine through one or more device units provided with a heat exchanger; and c) feeding the light gas passed through the device units provided with the heat exchanger into a reactor, according to which more economical butadiene preparation process is provided, by reducing net energy value required in process of butadiene preparation using oxidative dehydrogenation reaction.
摘要翻译： 提供了一种在丁二烯制备过程中回收能量的方法，其包括在使用氧化脱氢反应制备丁二烯的过程中，步骤：a）将从溶剂吸收塔排出的轻质气体的一部分或全部供应到涡轮机 发电; b）使通过涡轮机的轻质气体通过设置有热交换器的一个或多个装置单元; 以及c）将通过设置有热交换器的装置单元的轻质气体进料到反应器中，通过减少使用氧化脱氢反应的丁二烯制备过程中所需的净能值，从而提供更经济的丁二烯制备方法。
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5.发明申请公开(公告)号：US20210140072A1
公开(公告)日：2021-05-13
申请号：US16623162
申请日：2018-12-24
申请人： LG CHEM, LTD.
发明人： Jae Ik LEE , Sung Jin YOO , Jeong Seok LEE, , Mi Kyung KIM
摘要： The present invention relates to an energy saving method for separating an unreacted monomer, by which an unreacted monomer may be easily recovered from a mixture solution including an unreacted monomer, and a separation system which is capable of performing the method.
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公开(公告)号：US20190330126A1
公开(公告)日：2019-10-31
申请号：US16073279
申请日：2017-12-18
申请人： LG CHEM, LTD.
发明人： Jae Ik LEE , Eun Kyo KIM , Mi Kyung KIM , Jeong Seok LEE
摘要： The present invention relates to a method of preparing butadiene and a device for preparing the same. According to the present invention, when butadiene is prepared by oxidative dehydrogenation of butene, unlike conventional methods, in which nitrogen is used as a diluent gas and an absorption method is used to separate butadiene from reaction products, butane is used as a diluent gas and a condensation method, in which butadiene is liquefied and separated from reaction products using a low-temperature refrigerant or cooling water, is used. In addition, an absorption method of recovering all hydrocarbons from an upper stream generated in a condensation process is used, so that loss of hydrocarbons is minimized. Therefore, the method and device of the present invention may provide high-purity butadiene while reducing raw material costs, production costs, and energy consumption, thereby improving economic efficiency of processes.
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公开(公告)号：US20190144361A1
公开(公告)日：2019-05-16
申请号：US16098053
申请日：2017-12-18
申请人： LG CHEM, LTD.
发明人： Mi Kyung KIM , Jae Ik LEE , Eun Kyo KIM , Jeong Seok LEE , Young Chang BYUN , A Ra CHO
摘要： A method of preparing butadiene and a device for preparing the same. The method includes passing reaction raw materials containing butene, oxygen, steam, and a diluent gas through an oxidative dehydrogenation reactor, and oxidative dehydrogenation is performed therein to produce a reaction product separating water from the reaction product condensing hydrocarbons to produce a crude hydrocarbon mixture; and separating butadiene from the crude hydrocarbon mixture, where a gas containing n-butane remaining after the butadiene is separated is fed into the oxidative dehydrogenation reactor, and butane is used as a diluent gas. Because butane is used as a diluent gas, a C4 mixture and gas products may be easily separated through cooling and condensation processes. Thus, the method may increase productivity while reducing energy consumption and raw material costs, thereby improving economic efficiency.
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公开(公告)号：US20190031580A1
公开(公告)日：2019-01-31
申请号：US16072751
申请日：2017-12-18
申请人： LG CHEM, LTD.
发明人： Eun Kyo KIM , Mi Kyung KIM , Jae Ik LEE , Jeong Seok LEE
摘要： The present invention relates to a method of preparing butadiene and a device for preparing the same. According to the present invention, since butane is used as a diluent gas, even when a refrigerant belonging to a grade lower than a very low temperature refrigerant is used, a C4 mixture and gas products excluding butadiene may be easily separated, and loss of active ingredients may be minimized, which may increase productivity while reducing raw material costs, thereby improving economic efficiency. In addition to these advantages, when the method and device of the present invention are used, high-purity butadiene may be safely prepared.
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