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1. 发明申请

WO2004007064A1 CATALYTIC OXIDATION REACTOR WITH ENHANCED HEAT EXCHANGING SYSTEM 审中-公开
标题翻译：具有增强热交换系统的催化氧化反应器
公开(公告)号：WO2004007064A1
公开(公告)日：2004-01-22
申请号：PCT/KR2002/002074
申请日：2002-11-08
申请人： LG CHEM, LTD. , HA, Kyoung-Su , KIM, Geon-Yong , KANG, Seong-Pil , WOO, Boo-Gon
发明人： HA, Kyoung-Su , KIM, Geon-Yong , KANG, Seong-Pil , WOO, Boo-Gon
IPC分类号： B01J8/06
CPC分类号： B01J19/0013 , B01J8/067 , B01J2208/00212 , B01J2208/00221 , B01J2208/00548 , B01J2219/00006 , B01J2219/0004
摘要： A heat exchange-type reactor includes a reaction chamber (1) having mounted therein a plurality of contact tubes (5) filled with a catalyst material; at least one shield plate (11) mounted within the reaction chamber to partition an inner space of the reaction chamber into at least two separate spaces (1d, 1e); a plurality of conduits (13, 15, 17, 19) having entrance (15a, 17a) and exit (13a, 17a) openings through which a heat transfer medium respectively enters and exits, and being mounted to an outer circumference of the reaction chamber (1) corresponding to the partitioned spaces (1d, 1e); and a heat exchange unit connected to the conduits (13, 15, 17, 19) to perform heat exchange of the heat transfer medium, in which the heat exchange unit includes a single heat exchanger that performs the exchange of heat of the heat transfer medium in accordance with the partitioned spaces.
摘要翻译：热交换型反应器包括：反应室（1），其安装有多个填充有催化剂材料的接触管（5）; 至少一个屏蔽板（11），其安装在所述反应室内以将所述反应室的内部空间分隔成至少两个分开的空间（1d，1e）; 具有入口（15a，17a）和出口（13a，17a）开口的多个管道（13,15,17,19），传热介质通过该开口分别进入和离开并安装到反应室的外周（1）对应于分隔空间（1d，1e）; 以及连接到导管（13,15,17,19）的热交换单元，以进行传热介质的热交换，其中，热交换单元包括单个热交换器，该热交换器执行传热介质的热交换按照分区空间。

2. 发明申请

WO2005061414A1 METHOD OF PRODUCING UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH ENHANCED HEAT CONTROL SYSTEM 审中-公开
标题翻译：在固化床催化部分氧化反应器中生产不饱和酸的方法，具有增强的加热控制系统
公开(公告)号：WO2005061414A1
公开(公告)日：2005-07-07
申请号：PCT/KR2004/003373
申请日：2004-12-21
申请人： LG CHEM, LTD.
发明人： HA, Kyoung-Su , KIM, Geon-Yong , KANG, Seong-Pil , WOO, Boo-Gon
IPC分类号： C07B41/08
CPC分类号： C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： The present invention provides a process of producing unsaturated acids from unsaturated aldehydes by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor, as well as a shell-and-tube heat exchanger-type reactor for use in the process. In the invention, second-stage reaction zone of mainly producing unsaturated acids by the catalytic vapor phase oxidation of an unsaturated aldehyde-containing gas mixture produced in a first-stage reaction zone with molecular oxygen is divided into two or more shell spaces by at least one partition. Each of the divided shell spaces is filled with a heat transfer medium, and the heat transfer medium in each shell space is maintained at isothermal temperature or a temperature difference of 0-5 °C. Also, in order to protect catalyst layers from a highly exothermic reaction, the process is performed at a limited temperature difference between the temperature at a hot spot and the temperature of the heat transfer medium. Also, in order to facilitate the removal of heat generation at a location where the partition is placed, a reaction inhibition layer is disposed in that location. The improved heat control system for reactors provided according to the present invention can secure the heat stability of the catalyst layer, reduce the amount of byproducts, and increase the yield of a final product.
摘要翻译：本发明提供了一种在壳管式热交换器型反应器中通过固定床催化部分氧化由不饱和醛生成不饱和酸的方法，以及用于在管式热交换器型反应器中使用的管壳式热交换器型反应器的过程。在本发明中，通过在分子氧的第一阶段反应区中产生的不饱和醛的气体混合物的催化气相氧化主要生成不饱和酸的第二阶段反应区至少分成两个或更多个壳层空间一个分区。每个分开的壳体空间填充有传热介质，并且每个壳体空间中的传热介质保持在等温温度或0-5℃的温差。此外，为了保护催化剂层免受高放热反应，该过程在热点温度与传热介质的温度之间的有限温度差下进行。此外，为了便于在隔离物的位置除去发热，在该位置设置反应抑制层。根据本发明提供的用于反应器的改进的热控制系统可以确保催化剂层的热稳定性，减少副产物的量，并提高最终产品的产率。

3. 发明申请

WO2005021149A1 METHOD OF PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH ENHANCED HEAT CONTROL SYSTEM 审中-公开
标题翻译：在固体床催化部分氧化反应器中生产不饱和醛和不饱和酸的方法，具有增强的热控制
公开(公告)号：WO2005021149A1
公开(公告)日：2005-03-10
申请号：PCT/KR2004/002193
申请日：2004-09-01
申请人： LG CHEM, LTD. , HA, Kyoung-Su , KIM, Geon-Yong , KANG, Seong-Pil , CHOI, Seok-Hwan , WOO, Boo-Gon
发明人： HA, Kyoung-Su , KIM, Geon-Yong , KANG, Seong-Pil , CHOI, Seok-Hwan , WOO, Boo-Gon
IPC分类号： B01J8/06
CPC分类号： C07C51/252 , C07C57/04
摘要： The present invention provides a process of producing unsaturated aldehydes and unsaturated acids from olefins by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor. In this process, the reactor comprises a first-step reaction zone of mainly producing the unsaturated aldehydes, a second-step reaction zone of mainly producing the unsaturated acids, or both the two zones. The first-step reaction zone is divided into two or more zones by a partition. Each of the divided shell spaces is filled with a heat transfer medium, and the heat transfer medium in each shell space is maintained at isothermal temperature or a temperature difference of 0-5 °C. The temperatures of the heat transfer media in each of the divided shell spaces are set to increase in the moving direction of reactants. In order to facilitate the removal of heat generation at a location where the partition is placed, a reaction inhibition layer is disposed in the first-step reaction zone. Also, in order to protect the catalyst layer from a highly exothermic reaction, the process is performed at a limited temperature difference between the temperature in a hot spot and the temperature of a molten salt. If the improved heat control system according to the present invention is used, the heat stability of the catalyst layer will be secured and the yields of intermediate and final products can be increased.
摘要翻译：本发明提供了一种在壳管式热交换器型反应器中通过固定床催化部分氧化从烯烃生产不饱和醛和不饱和酸的方法。在该方法中，反应器包括主要产生不饱和醛的第一步反应区，主要产生不饱和酸的第二步反应区或两个区。第一步反应区通过隔板分成两个或多个区域。每个分开的壳体空间填充有传热介质，并且每个壳体空间中的传热介质保持在等温温度或0-5℃的温差。在每个分开的壳体空间中的传热介质的温度被设定为在反应物的移动方向上增加。为了便于在放置隔板的位置除去发热，反应抑制层设置在第一步反应区中。此外，为了保护催化剂层免受高度放热反应，该过程在热点温度与熔融盐温度之间的有限温度差下进行。如果使用根据本发明的改进的热控制系统，则将确保催化剂层的热稳定性，并且可以提高中间产品和最终产品的产率。

4. 发明申请

WO2005111187A1 FACILITY PARTS CLEANING SOLUTION FOR PROCESSING OF (METH)ACRYLIC ACID AND/OR (METH)ACRYLIC ESTERS AND CLEANING METHOD USING SAID CLEANING SOLUTION 审中-公开
标题翻译：用于加工（甲基）丙烯酸和/或（甲基）丙烯酸酯的清洁溶液的清洁溶液和使用清洁溶液的清洁方法
公开(公告)号：WO2005111187A1
公开(公告)日：2005-11-24
申请号：PCT/KR2005/001437
申请日：2005-05-17
申请人： LG CHEM, LTD. , CHOI, Seok-Hwan , KANG, Seong-Pil , HA, Kyoung-Su , KIM, Geon-Yong , WOO, Boo-Gon
发明人： CHOI, Seok-Hwan , KANG, Seong-Pil , HA, Kyoung-Su , KIM, Geon-Yong , WOO, Boo-Gon
IPC分类号： C11D7/06
CPC分类号： C11D7/06 , C11D7/32 , C11D7/3245 , C11D7/3263 , C11D11/0041 , F28G9/00
摘要： The present invention relates to a facility parts cleaning solution for the processing of (meth)acrylic acid and/or (meth)acrylic esters and a cleaning method using the cleaning solution. An aqueous cleaning composition comprising 5 to 50 wt% of at least one alkali metal hydroxide selected from the group consisting of sodium hydroxide and potassium hydroxide, 0.01 to 1 wt% of a water-soluble amino acid, 0.001 to 0.05 wt% of N.N'-methylene bisacrylamide, and 0.001 to 0.05 wt% of azobisisobutyronitrile is used to clean facility parts for manufacturing (meth)acrylic acid and/or (meth)acrylic esters in order to easily remove polymers and deposits.
摘要翻译：本发明涉及用于处理（甲基）丙烯酸和/或（甲基）丙烯酸酯的设备部件清洗液和使用该清洗溶液的清洗方法。含有5〜50重量％的选自氢氧化钠和氢氧化钾的至少一种碱金属氢氧化物，0.01〜1重量％的水溶性氨基酸，0.001〜0.05重量％的N， N'-亚甲基双丙烯酰胺和0.001〜0.05重量％的偶氮二异丁腈用于清洗用于制造（甲基）丙烯酸和/或（甲基）丙烯酸酯的设备部件，以便容易地除去聚合物和沉积物。

5. 发明申请

WO2005080310A1 METHOD FOR PRODUCING (METH)ACRYLIC ACID 审中-公开
标题翻译：生产（甲基）丙烯酸的方法
公开(公告)号：WO2005080310A1
公开(公告)日：2005-09-01
申请号：PCT/KR2005/000427
申请日：2005-02-18
申请人： LG CHEM, LTD.
发明人： KANG, Seong-Pil , CHOI, Seok-Hwan , HA, Kyoung-Su , KIM, Geon-Yong , WOO, Boo-Gon , LEE, Sang-Youn , KIM, Young-Bae , KANG, Koo-Hyun
IPC分类号： C07C51/43
CPC分类号： C07C51/48 , C07C57/04
摘要： The present invention relates to a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as an aqueous (meth)acrylic acid from a (meth)acrylic acid-containing gas mixture produced by the catalytic gas phase oxidation of at least one reactant selected from the group consisting of propane, propylene, isobutylene and (meth)acrolein, and a system usable for the method. The recovery process comprises the steps of: (1) feeding the (meth)acrylic acid-containing gas mixture into a quenching tower and condensing it in the quenching tower so as to recover an aqueous (meth)acrylic acid solution from the bottom of the quenching tower, in which some of the recovered aqueous solution of (meth)acrylic acid is recycled to the top part of the quenching tower so as to condense the (meth)acrylic acid-containing gas mixture; (2) passing the uncondensed part of the (meth)acrylic acid-containing gas mixture from the quenching tower through the top of the quenching tower to an absorption column; (3) absorbing (meth)acrylic acid contained in the uncondensed part of the (meth)acrylic acid-containing gas mixture in the absorption column with a absorption solvent; (4) feeding the (meth)acrylic acid solution resulting from the absorption in the step (3) to a desorption column; and (5) separating the solvent used in the step (3) from the (meth)acrylic acid solution in the desorption column, so that the substance from which the solvent has been removed in the desorption column is fed to the quenching tower, and the separated solvent is recycled to the absorption column. The inventive method is an efficient and economic method which allows a reduction in energy consumption in subsequent purification processed by maximizing the concentration of an aqueous solution of (meth)acrylic solution recovered at the bottom of the quenching tower and minimizing the concentration of (meth)acrylic acid lost from the vent gas of the absorption column.
摘要翻译：本发明涉及一种生产（甲基）丙烯酸的方法，包括从由（甲基）丙烯酸的气体混合物通过催化气相氧化制备的（甲基）丙烯酸水溶液回收（甲基）丙烯酸的方法的至少一种选自丙烷，丙烯，异丁烯和（甲基）丙烯醛的反应物，以及可用于该方法的系统。回收方法包括以下步骤：（1）将含（甲基）丙烯酸的气体混合物进料到淬火塔中，并将其冷凝在淬火塔中，以从底部回收（甲基）丙烯酸水溶液淬火塔，其中一些回收的（甲基）丙烯酸水溶液被再循环到淬火塔的顶部，以冷凝（甲基）丙烯酸的气体混合物; （2）将来自淬火塔的（甲基）丙烯酸混合气体的未冷凝部分通过淬火塔的顶部通入吸收塔; （3）用吸收溶剂吸收吸收塔中含（甲基）丙烯酸的气体混合物的未缩合部分中所含的（甲基）丙烯酸; （4）在步骤（3）中将由吸收产生的（甲基）丙烯酸溶液进料到解吸塔; 和（5）将步骤（3）中使用的溶剂与解吸塔中的（甲基）丙烯酸溶液分离，使得在解吸塔中除去溶剂的物质被供给至淬火塔，将分离的溶剂再循环至吸收塔。本发明的方法是一种有效和经济的方法，其允许通过使在淬火塔底部回收的（甲基）丙烯酸溶液的水溶液的浓度最大化并使（甲基）丙烯酸从吸收塔的排气中流失。

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