RSM-optimized dual-catalyst system: green and efficient synthesis of bio-based PETO from renewable plant-derived feedstocks

IF 2.4 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2026-03-11 Epub Date: 2026-01-18 DOI:10.1002/jctb.70140

Mingzhu Sun, Linlin Zhao

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引用次数: 0

Abstract

BACKGROUND

Bio-based oleic acid pentaerythritol ester (PETO) is a crucial green feedstock for high-end high-temperature lubricants. Existing synthesis processes are hindered by low catalytic efficiency, high energy consumption, and suboptimal yields.

OBJECTIVE

This study aims to develop an efficient, low-energy green synthesis process for PETO.

METHOD

A ‘dibutyltin oxide (DBTO) + tetrabutylammonium bromide (TBAB)’ dual-catalyst system was used, and the transesterification process was optimized by ‘single-factor prescreening—Box-Behnken response surface optimization’.

RESULTS

The optimization model showed high reliability (R² > 0.99). Under optimized conditions (DBTO 1.56%, TBAB 0.7%, 269.86 °C, molar ratio 4.71:1, 4 h), PETO yield reached 96.89%, far exceeding conventional processes. TBAB synergistically enhances DBTO's catalytic efficiency by reducing interfacial resistance, and no water-carrying agent is needed.

SIGNIFICANCE

The integrated DBTO+TBAB dual-catalyst and RSM system provides a green, scalable PETO synthesis solution, facilitating industrial application and conforming to sustainable manufacturing principles. © 2026 Society of Chemical Industry (SCI).

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rsm优化双催化剂系统：绿色高效合成生物基PETO从可再生植物来源的原料

生物基油酸季戊四醇酯（PETO）是生产高端高温润滑油的重要绿色原料。现有的合成工艺受到催化效率低、能耗高和产率次优的阻碍。目的开发高效、低能耗的绿色合成PETO工艺。方法采用二丁基氧化锡(DBTO) +四丁基溴化铵（TBAB）双催化剂体系，采用单因素预筛选- box - behnken响应面优化法对酯交换工艺进行优化。结果优化模型具有较高的信度（R2 > 0.99）。在优化条件（DBTO 1.56%, TBAB 0.7%, 269.86℃，摩尔比4.71:1,4 h）下，PETO收率达到96.89%，远超常规工艺。TBAB通过降低界面阻力协同提高DBTO的催化效率，不需要任何载水剂。集成DBTO+TBAB双催化剂和RSM系统提供了一种绿色、可扩展的PETO合成解决方案，促进了工业应用并符合可持续制造原则。©2026化学工业学会（SCI）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.