Integrated catalytic reactor used in styrene production process

By designing an integrated catalytic reactor, a heating device is used to rapidly raise the temperature to prevent styrene polymerization, and a differential pressure gauge and dust collector are installed to prevent clogging. This achieves efficient and low-cost styrene waste gas treatment, solving the problems of large footprint and high energy consumption of traditional systems.

CN224113924UActive Publication Date: 2026-04-14NANJING YIRE ZONGLIAN ENERGY SAVING TECH CO LTD
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Patent Information

Application Number
CN202520755237.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-14
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Traditional styrene production processes involve waste gas treatment systems that occupy large areas, consume high amounts of energy, and are prone to clogging. Existing catalytic combustion equipment is insufficient to meet the demands for high efficiency and low cost.

Method used

An integrated catalytic reactor was designed, which includes tubular and plate heat exchangers, a catalytic bed and a temperature control device. The heating device rapidly raises the temperature to prevent styrene polymerization, and a differential pressure gauge and dust collector are installed to prevent clogging, thereby achieving intelligent temperature control and waste heat recovery.

Benefits of technology

It effectively prevents styrene polymerization blockage, reduces operating costs, improves system efficiency, and achieves efficient waste gas treatment.

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Abstract

The utility model discloses an integrated catalytic reactor used in a styrene production process. The integrated catalytic reactor comprises a gas inlet for introducing waste gas, a tubular heat exchanger, a plate heat exchanger, a catalytic bed, a temperature control device for adjusting the temperature of the waste gas in the tubular heat exchanger, and a gas outlet. Waste gas enters from the gas inlet and enters a pipe of the tubular heat exchanger from the gas inlet channel for heat exchange, so that the temperature is increased to be higher than the styrene polymerization temperature, and the waste gas enters the plate heat exchanger from the tubular heat exchanger through the first channel, is subjected to heat exchange again to increase the temperature, then enters the catalytic bed, and is subjected to catalytic reaction to form clean high-temperature flue gas; and the high-temperature flue gas passes through the third channel to the periphery of the plate heat exchanger and exchanges heat with waste gas in the plate heat exchanger, and the cycle is repeated. Waste gas in the low-temperature section is subjected to heat exchange through a tubular heat exchanger, the temperature of the waste gas is increased to be higher than the styrene polymerization temperature, and the tubular heat exchanger is not blocked; and the high-temperature section adopts the plate heat exchanger for waste heat recovery, waste heat is utilized, and the cost performance is high.
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