顺酐的工艺主要分为以下三步：

The production process of maleic anhydride mainly consists of the following three steps:

　　以苯、碳四馏分或正丁烷为原料催化氧化制顺酐；

Catalytic oxidation of benzene, C4 fraction or n-butane to produce maleic anhydride;

　　从氧化生成的混合气中回收顺酐得到粗酐；

Recovering maleic anhydride from the mixed gas generated by oxidation to obtain crude anhydride;

　　精制粗酐从而获得顺酐产品。顺酐的技术路线主要分为苯氧化法、碳四烯烃法、苯酐副产法、正丁烷氧化法 4 种。正丁烷氧化制顺酐是国际上近年来发展很快的正丁烷利用途径，正丁烷法顺酐工艺按反应器分为固定床工艺和流化床工艺，其后处理工段所采用的工艺有两种技术方法，即水吸收法和溶剂吸收法。下面为大家着重介绍一下有机溶剂吸收法。

Refine crude anhydride to obtain maleic anhydride products. The technical routes for the production of maleic anhydride are mainly divided into four types: benzene oxidation method, carbon tetraolefin method, phthalic anhydride by-product method, and n-butane oxidation method. The oxidation of n-butane to maleic anhydride is a rapidly developing way of utilizing n-butane internationally in recent years. The production process of n-butane based maleic anhydride can be divided into fixed bed process and fluidized bed process according to the reactor. There are two technical methods used in the post-treatment section, namely water absorption method and solvent absorption method. Below, we will focus on introducing to you organic solvent absorption method.

　　有机溶剂吸收法工艺：在采用丁烷法顺酐的初期，主要是一些苯法装置通过更换催化剂实现，就是新建的装置工艺也与苯法基本一致，均为水吸收法回收。由于丁烷氧化反应生成少量的乙酸和丙烯酸，而苯氧化反应几乎不生成乙酸和丙烯酸，另外丁烷氧化生成的水也比苯氧化多 ，所以丁烷法水吸收工艺遇到的腐蚀和堵塞问题要比苯法多。为了减轻腐蚀，提高顺酐收率，降低能耗，各公司在改进丁烷氧化催化剂的同时，加强了对顺酐回收工艺的研究。

Organic solvent absorption process: In the initial stage of producing maleic anhydride using the butane method, some benzene process units mainly achieved this by replacing catalysts, and even the newly built unit process is basically the same as the benzene process, all of which are recovered by water absorption method. Due to the fact that butane oxidation produces a small amount of acetic acid and acrylic acid, while benzene oxidation produces almost no acetic acid and acrylic acid, and butane oxidation produces more water than benzene oxidation, the butane water absorption process encounters more corrosion and blockage problems than the benzene method. In order to reduce corrosion, increase the yield of maleic anhydride, and reduce energy consumption, various companies have strengthened their research on the recovery process of maleic anhydride while improving the butane oxidation catalyst.

以上就是有关：顺酐厂家 的介绍，想了解更多的内容请点击：http://www.jnjhhg.cn 我们将会全心全意为您提供满分服务，欢迎您的来电！

The above is an introduction to manufacturers of maleic anhydride. For more information, please click: http://www.jnjhhg.cn We will wholeheartedly provide you with full score service. Welcome to call us!