Intelligent optimization control method for device for preparing dimethyl ether through gas-phase dehydration of methanol

Abstract

The invention discloses an intelligent optimization control method for a device for preparing dimethyl ether through gas-phase dehydration of methanol. Firstly, initial operation parameters of conditions such as methanol feeding flow, pressure, reaction temperature and the like in a reactor are obtained through analog calculation, then, the control parameters are dynamically adjusted through an intelligent controller, edge clamping control in the reaction process is achieved, and energy consumption is reduced while the high conversion rate of methanol in the catalytic reaction is guaranteed. Amodel is established according to a reaction mechanism for preparing dimethyl ether through gas-phase dehydration of methanol in the early stage of reaction, so that optimal initial operation parameters are determined, a heating furnace is used for heating a fixed bed, and the reasonable temperature of the catalytic reaction is achieved. In the reaction process, the controller performs material balance according to the energy transfer rule of the fixed bed reactor, adjusts the feeding flow and the reaction environment pressure, and ensures that the system is carried out in an efficient and stable state.

Description

technical field [0001] The patent of the present invention belongs to the intersection field of methanol gas-phase dehydration to prepare dimethyl ether and industrial automation control technology in the field of catalytic reaction, and specifically relates to the design of an intelligent optimization control system in the process of methanol gas-phase dehydration reaction. Background technique [0002] Due to its unique physical properties, dimethyl ether can be used as a new type of clean raw material and an important chemical intermediate, and it has been increasingly valued. [0003] The technology for preparing dimethyl ether in the industrial production process is mainly the methanol vapor phase dehydration method. However, various catalysts have their advantages and limitations in the preparation of dimethyl ether. During the dehydration process, it is easy to cause deep dehydration of the generated dimethyl ether, resulting in other By-products, and easily lead to a...

AI Technical Summary

Problems solved by technology

Therefore, in the actual production process, it is impossible to efficiently and reasonably control the operating parameters of the catalytic reaction process of methanol vapor phase dehydration to dimethyl ether and effectively detect the working conditions of the device, which restricts its production efficiency and causes waste of raw materials and safety.

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