The Reactor Design And Study For Production Chloromethanes

In China, methane, as the raw material, is used to produce the methylchlorides. But the effective is not good, it is meaning the consumption is very high and the products ratio is difficult to control. The carbon tetrachloride is very high in the mixture of the products. And we do not hope to see more carbon tetrachloride within the products, hence our Honghe Company import the process of methanol rout from Spanish Aragonesas Company. The process is consisted of two stages. The first stage is to produce methyl chloride from the reaction of methanol and HC1. The second stage is to produce methylene chloride, chloroform and small quantity carbon tetrachloride from methyl chloride and liquid chlorine. The paper descript the phase analysis firstly, and then carry on the kinetic analysis, at the last finish the reactor calculation. The result for the reactor calculation is proved right. The length of the reactor is enough, and the reaction is safe. At the same time, it is proved that the calculation way of this paper is right.The kinetic model for high-pressure chlorination of chloromethanes (CMS) is recommended by Spanish MdE Company. The kinetic model is applied to design of the high-pressure tubular reactor in order to verify that the chlorine fed into thereactor is consumed in first part of the reactor. The length of the reactor is 80 meters. The concept is based on safety considerations because a potentially explosive vapor may be formed in later process operation.The main objective of the paper is to prove that the proposed reactor is suitable for the chloromethanes Honghe Plant.There are three overall reactions, which are involved in the chlorination of chloromethanes.