Energy-saving device and method for producing potassium methoxide by thermal coupling alkali method

By using a thermally coupled alkaline potassium methoxide production unit, multi-stage recovery towers and thermal coupling technology are employed to solve the problems of high energy consumption and low methanol recovery rate in alkaline potassium methoxide production, thereby reducing energy consumption and improving methanol recovery efficiency.

CN122076352BActive Publication Date: 2026-07-10NANJING JIAHUA TECH CO LTD
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Patent Information

Application Number
CN202610540292.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-07-10
Estimated Expiration
2046-04-22

AI Technical Summary

Technical Problem

The existing alkaline process for producing potassium methoxide has high energy consumption, low methanol recovery, and poses safety hazards. Furthermore, traditional processes cannot effectively recover methanol, leading to raw material waste.

Method used

The thermally coupled alkaline process for the production of potassium methoxide includes a reaction system, a distillation system, and a recovery system. Through thermal coupling and multi-stage recovery tower design, combined with dryers and compressors, the system optimizes heat energy utilization and material flow, achieving efficient methanol recovery and reduced energy consumption.

Benefits of technology

It significantly reduced the steam energy consumption and circulating water consumption of the reaction tower, increased the methanol recovery rate, reduced wastewater discharge, lowered the overall energy consumption, and improved the methanol recovery efficiency.

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Abstract

This invention belongs to the fields of chemical engineering and energy conservation, and discloses an energy-saving device and method for producing potassium methoxide using a thermally coupled alkaline process. The energy-saving device for producing potassium methoxide using a thermally coupled alkaline process includes: a reaction system, a distillation system, and a recovery system; the reaction system includes a reaction tower; the distillation system includes a distillation tower, a dehydrator, a first compressor, a second compressor, a falling film reboiler, and a distillation condenser; the recovery system includes a primary feed preheater, a secondary feed preheater, a first recovery tower condenser, a first recovery tower, a first recovery tower falling film reboiler, a second recovery tower, a second recovery tower falling film reboiler, a third recovery tower, and a third recovery tower reboiler. This invention discloses a method for producing potassium methoxide using an alkaline process based on the aforementioned energy-saving device for producing potassium methoxide using a thermally coupled alkaline process. This invention utilizes the heat from the product in the reaction tower bottom and the heat from the recovery system to thermally couple with the feed stream, saving energy consumption of steam in the reaction tower bottom and the amount of circulating water used.
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