An ultra-low sulfur pure biodiesel production device and method

By designing modular supports and conversion mechanisms, the discontinuity problem of pretreatment, reaction, and deep desulfurization in biodiesel production equipment has been solved, achieving continuous production and improved efficiency, thereby increasing the utilization rate of equipment resources.

CN121160402BActive Publication Date: 2026-06-19SHANGHAI ZHONGQI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511343294.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-06-19
Estimated Expiration
2045-09-19

AI Technical Summary

Technical Problem

Existing biodiesel production equipment has low modular integration efficiency in pretreatment, reaction, separation and deep desulfurization, and the continuous switching between methanol delivery pipes and dehydration and desulfurization towers is not effective, resulting in reduced production continuity and efficiency.

Method used

The system adopts a modular support design, and is equipped with a conversion mechanism and control box. The main dehydration and desulfurization tower and the auxiliary dehydration and desulfurization tower are switched through the first and second conversion plates. The methanol conveying path is switched synchronously by combining a servo motor and a threaded sliding toothed plate, and an electric push rod assists in the disassembly and assembly of the adsorbent. The replacement of the adsorbent does not affect the continuity of production.

Benefits of technology

This has enabled continuous and efficient biodiesel production, improved equipment resource utilization, and reduced production downtime and energy consumption.

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Abstract

This invention relates to an ultra-low sulfur pure biodiesel production equipment and method, belonging to the field of pure biodiesel production technology. It includes a modular support, with a pretreatment cylinder at the top of the modular support. The pretreatment cylinder has a feeding port at its top, and a cyclone centrifuge at its outlet. A feed pipe is fixedly connected to the outer wall of the cyclone centrifuge via a connecting pump. One end of the feed pipe is fixedly connected to a main dehydration and desulfurization tower. The invention's first and second conversion plates allow for switching between the main and auxiliary dehydration and desulfurization towers based on the adsorbent's lifespan when raw materials are transported to the main dehydration and desulfurization tower via the feed pipe. This prevents production stagnation caused by disassembling and replacing the adsorbent in a single dehydration and desulfurization tower, thus ensuring the continuity of raw material processing and reducing processing efficiency.
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