MTBE (methyl tert-butyl ether) device provided with safe automatic control system and used for producing polymerized oil and automatic control method of MTBE device

Abstract

The invention discloses an MTBE (methyl tert-butyl ether) device provided with a safe automatic control system and used for producing polymerized oil and an automatic control method of the MTBE device. The MTBE device comprises a primary polymerization reactor, a secondary polymerization reactor, the safe automatic control system, a primary external circulation heat taking part and a secondary external circulation heat taking part. An old original MTBE device can be used, the utilization rate of equipment is high, and the transformation cost of the device is lower; the primary polymerization reactor and the secondary polymerization reactor are both provided with multipoint remote temperature indicators, and real-time and accurate temperature alarm linkage value can be realized; in the automatic control method, safety measures such as quick cutting-off, timely supplement of inhibitors and emergency tapping of reaction materials during accidents are taken, and the safety of the MTBE device is guaranteed. The primary external circulation heat taking part and the secondary external circulation heat taking part are also newly added, reaction heat is timely removed, and overtemperature of a catalyst bed layer is prevented. The MTBE device is worth popularizing and applying in a polymerized oil device of an MTBE device of a refinery plant.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to an MTBE device with a safety automatic control system for converting high-octane gasoline blending components into composite oil and an automatic control method thereof. Background technique [0002] Relevant international studies believe that MTBE pollutes groundwater quality. The United States, Japan and other countries have vigorously developed ethanol gasoline and banned MTBE. In response to international policies and the development requirements of the new situation, the National Development and Reform Commission has issued "On the Expansion of Biofuel Ethanol Production and Promotion of Use" According to the policy of "Implementation Plan for Ethanol Gasoline for Vehicles", and basically achieve full coverage in 2020; after the nationwide implementation of E10 ethanol gasoline, according to the "GB 18351 Ethanol Gasoline Blending Component Oil" standard, in ...

AI Technical Summary

Problems solved by technology

At present, the main unit used by C4 is the MTBE unit. In the face of the new international and domestic situation, the MTBE unit urgently needs to be transformed and converted. In the existing technology, the use of the MTBE unit to produce isooctene composite oil technology can realize the utilization of the original system and facilities Maximize the cost of renovation; however, the etherification reaction of the original MTBE unit is a bubble point reaction, and most of the reaction systems use conventional automatic control systems. Cause overtemperature and overpressure of the reaction system, caustic, etc.; and following the guidance of the State Administration of Work Safety on strengthening the management of chemical safety instruments, starting from January 1, 2018, all new chemical installations involving "two key points and one major" and hazardous chemical storage facilities shall be designed with safety instrumented systems that meet the requirements

Images