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11. 发明申请

US20110306788A1 OXIDIZED ORGANIC COMPOUND MANUFACTURING METHOD 有权
标题翻译：氧化有机化合物制造方法
公开(公告)号：US20110306788A1
公开(公告)日：2011-12-15
申请号：US13203311
申请日：2009-03-09
申请人： Michio Tanimoto , Nobuyuki Hakozaki
发明人： Michio Tanimoto , Nobuyuki Hakozaki
IPC分类号： C07C51/25 , C07C45/35
CPC分类号： C07C51/235
摘要： The object of the present invention is to provide, in the production of a useful oxidized organic compound by a catalytic gas-phase oxidation reaction on an industrial scale, a manufacturing method which, even when operation has been temporarily interrupted for periodic inspection or emergency shutdown, fully avoids the danger of an explosion due to reaction feedstock gases and the like remaining inside the reaction apparatus, and which, when operation is restarted, is able to shorten, relative to the prior art, the period required for the reaction to return to a stable steady state, and moreover which, after operation has restarted, does not undergo a decrease in yield, and allows a high yield to be stably maintained over a long period, whereby the production efficiency can be greatly increased.The disclosed invention is a method for manufacturing an oxidized organic compound which includes a step of forming an oxidized organic compound, in use of a fixed-bed reactor having a reaction tube packed with an oxide catalyst, by supplying at least one type of organic compound as a reaction feedstock gas and using a molecular oxygen-containing gas to carry out a catalytic gas-phase oxidation reaction; and a step of stopping the catalytic gas-phase oxidation reaction. In the manufacturing method, when stopping the catalytic gas-phase oxidation reaction, the supply of the reaction feedstock gas is stopped, after which an inert gas is supplied to the reactor, then a molecular oxygen-containing gas is supplied, subsequent to which the supply of the molecular oxygen-containing gas to the reactor is stopped.
摘要翻译：本发明的目的是在工业规模的催化气相氧化反应生产有用的氧化有机化合物时提供即使在定期检查或紧急停机时暂时中断操作的制造方法，完全避免了由反应原料气体等残留在反应装置内的爆炸的危险，并且当操作重新开始时，相对于现有技术，能够缩短反应所需的时间稳定的稳定状态，而且在操作重新启动之后，不会降低产量，并且能够长期稳定地保持高产率，从而可以大大提高生产效率。所公开的发明是一种氧化有机化合物的制造方法，其包括形成氧化有机化合物的步骤，在使用具有填充有氧化物催化剂的反应管的固定床反应器的情况下，通过供给至少一种类型的有机化合物作为反应原料气体并使用含分子氧的气体进行催化气相氧化反应; 以及停止催化气相氧化反应的步骤。在制造方法中，停止催化气相氧化反应时，停止供给反应原料气体，之后向反应器供给惰性气体，然后供给含分子氧气体，接着，停止向反应器供应含分子氧的气体。

12. 发明申请

US20080021242A1 Reactor for gas phase catalytic oxidation and a process for producing acrylic acid using it 失效
标题翻译：用于气相催化氧化的反应器和使用它的丙烯酸生产方法
公开(公告)号：US20080021242A1
公开(公告)日：2008-01-24
申请号：US11826630
申请日：2007-07-17
申请人： Michio Tanimoto , Daisuke Nakamura , Nobuyuki Hakozaki
发明人： Michio Tanimoto , Daisuke Nakamura , Nobuyuki Hakozaki
IPC分类号： C07C45/28 , B01J8/04
CPC分类号： B01J8/048 , B01J8/0492 , B01J8/0496 , B01J8/067 , B01J23/002 , B01J23/8885 , B01J37/0221 , B01J2208/00212 , B01J2208/00221 , B01J2208/00513 , B01J2208/00707 , B01J2208/025 , B01J2523/00 , C07C51/252 , C07C57/04 , B01J2523/17 , B01J2523/55 , B01J2523/68 , B01J2523/69 , B01J2523/13 , B01J2523/54 , B01J2523/842 , B01J2523/845
摘要： Conventional gas-phase catalytic oxidation reaction apparatus comprising two reactors for production of acrylic acid is subject to problems of high equipment costs for the reactors and piping, necessity for wide installation area and easy accumulation of carbides generated by autoxidation of acrolein. On the other hand, conventional reaction apparatus comprising a single reactor has the drawbacks that the composition of gas in the first stage reaction and in the second stage reaction cannot be optimized independently of each other, and that the allowable concentration of starting propylene is limited because of the risk of explosion. As a reaction apparatus to solve these problems, this invention provides a fixed bed shell-and-tube reaction apparatus comprising a single reactor, characterized in that the inside of the reactor is divided into two reaction zones of the first reaction zone and the second reaction zone, and that a space equipped with a mechanism for introducing a gaseous substance from outside is provided between the two reaction zones.
摘要翻译：包括用于生产丙烯酸的两个反应器的常规气相催化氧化反应装置受到反应器和管道的高设备成本的问题的影响，需要宽的安装面积和易于积聚由丙烯醛自动氧化产生的碳化物。另一方面，包括单个反应器的常规反应装置的缺点是第一阶段反应和第二阶段反应中的气体组成不能彼此独立地优化，并且起始丙烯的允许浓度受到限制，因为的爆炸风险。作为解决这些问题的反应装置，本发明提供一种包括单个反应器的固定床管壳反应装置，其特征在于，将反应器内部分成第一反应区和第二反应的两个反应区并且在两个反应区之间设置有配备有用于从外部引入气态物质的机构的空间。

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