Energy-saving optimization system for producing isobutene through butene isomerization

By eliminating the cooler and using a high-temperature centrifugal compressor, the energy-saving optimization system solves the problems of high energy consumption and complex process in the production of isobutylene from butene isomerization, achieving energy savings and process simplification, and improving system stability and operational continuity.

CN223837331UActive Publication Date: 2026-01-27SHANDONG HAICHENG PETROCHEMICAL ENG DESIGN CO LTD
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Patent Information

Application Number
CN202520324656.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-27
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

The existing process for producing isobutylene by butene isomerization is energy-intensive, complex, involves many pieces of equipment, and has discontinuous and unflexible adjustment capabilities.

Method used

An energy-saving optimization system is adopted, including a reaction system, a gas-liquid separator, a compressor, and a separation system. The cooler is eliminated, and a high-temperature centrifugal compressor is used to simplify the process. The reaction products are directly fed into the compressor for pressurization, reducing the consumption of cooling water and steam.

Benefits of technology

It reduces the consumption of cooling water and steam, saves energy, simplifies the production process, improves the stability and continuity of operation of the system, and reduces energy consumption.

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Abstract

The utility model discloses an energy-saving optimization system for producing isobutene through butene isomerization. The energy-saving optimization system comprises a reaction system, a gas-liquid separation tank, a compressor and a separation system, the mixed C4 enters a reaction system for reaction, the reaction system is communicated with a gas-liquid separation tank, a gas phase of the gas-liquid separation tank is communicated with a compressor, the compressor is communicated with a separation system, a liquid phase of the gas-liquid separation tank is communicated with the separation system, and the separation system outputs an isobutene product; the reaction system comprises a feeding and discharging heat exchanger, a heating furnace and an isomerization reactor, the feeding and discharging heat exchanger is communicated with the heating furnace, the heating furnace is communicated with the isomerization reactor, the isomerization reactor is communicated with the feeding and discharging heat exchanger, and the feeding and discharging heat exchanger is communicated with the gas-liquid separation tank. Reaction products enter the compressor without being cooled by the cooler, consumption of cooling water is reduced, the reaction products enter the separation system after being compressed at high temperature, consumption of steam and cooling water of the separation system is reduced, energy is saved, and energy consumption is reduced.
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