TEPA与[MI][C6H2(OH)3COO]复配对小桐子生物柴油抗氧化性的影响

doi:10.16085/j.issn.1000-6613.2020-0104

化工进展 ›› 2020, Vol. 39 ›› Issue (11): 4427-4434.DOI: 10.16085/j.issn.1000-6613.2020-0104

TEPA与[MI][C₆H₂(OH)₃COO]复配对小桐子生物柴油抗氧化性的影响

滕雯¹(), 陈勇¹(), 隋猛¹, 李法社¹^,²

^1.昆明理工大学冶金与能源工程学院，云南昆明 650093
^2.冶金节能减排教育部工程研究中心，云南昆明 650093

出版日期:2020-11-05 发布日期:2020-11-06
通讯作者: 陈勇
作者简介:滕雯（1998—），女，本科，研究方向为能源与动力工程。E-mail：983621527@qq.com。
基金资助:
国家自然科学基金(51766007);云南省自然科学基金(2018FB092);NSFC云南联合基金(U1602272);省部共建复杂有色金属资源清洁利用国家重点实验室自设项目(CNMRCUTS1704)

Effect of TEPA and [MI][C₆H₂(OH)₃COO] compound on antioxidant property of biodiesel

Wen TENG¹(), Yong CHEN¹(), Meng SUI¹, Fashe LI¹^,²

^1.College of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
^2.Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction, Ministry of Education, Kunming 650093, Yunnan, China

Online:2020-11-05 Published:2020-11-06
Contact: Yong CHEN

摘要/Abstract

摘要：

将四乙烯五胺（TEPA）抗氧化剂与[MI][C₆H₂(OH)₃COO]离子液体抗氧化剂进行不同比例复配，旨在研究其抑制金属设备对生物柴油的催化氧化作用以及减轻生物柴油对金属的腐蚀。本文利用Rancimat测定法检测添加复配抗氧化剂前后小桐子生物柴油氧化安定诱导期的变化，研究复配抗氧化剂对小桐子生物柴油的抗氧化性、铜片腐蚀性及铁片腐蚀性、油溶性能的影响。结果表明，复配抗氧化剂可以有效地提高生物柴油的氧化稳定性能，在1∶1复配抗氧化剂添加量为0.01%时，小桐子生物柴油诱导期为11.63h，超过了国家标准（6h），比小桐子生物柴油的诱导期提高了473%。复配抗氧化剂对生物柴油的铜片腐蚀、铁片腐蚀都有良好的抑制作用，对生物柴油中的Cu²⁺、Fe³⁺的催化氧化也有良好的抑制效果。在TEPA与[MI][C₆H₂(OH)₃COO]复配比例为1∶1、3∶1、5∶1时，5∶1的油溶性能最佳。

关键词: 生物柴油, 离子液体, 配合物, 四乙烯五胺, 复配抗氧化剂, 氧化稳定性

Abstract:

TEPA antioxidants were mixed with [MI][C₆H₂(OH)₃COO] ionic liquid antioxidants in different proportions to study the inhibition of metal equipment on the catalytic oxidation of biodiesel and to reduce the corrosion of biodiesel to metals. Rancimat method was used to detect the changes of oxidative stability induction period of Jatropha biodiesel after adding compound antioxidants, and to study the effects of compound antioxidants on antioxidant activity, corrosion of copper sheet, corrosion of iron sheet and oil solubility of Jatropha biodiesel. The results showed that the complex antioxidant could effectively improve the oxidation stability of biodiesel. When the dosage of 1∶1 antioxidant was 0.01%, the induction period of Jatropha biodiesel was 11.63h, which exceeded the national standard (6h), and was 473% higher than that of Jatropha biodiesel. The compound antioxidants have good inhibition on copper corrosion and iron corrosion of biodiesel, as well as the catalytic oxidation of Cu²⁺ and Fe³⁺ in biodiesel. Among the ratio of TEPA to [MI][C₆H₂(OH)₃COO]: 1∶1, 3∶1, 5∶1, 5∶1 has the best oil solubility.

Key words: biodiesel, ionic liquid, complexes, tetraethylene pentamine (TEPA), compound antioxidants, oxidation stability

中图分类号:

TQ645.1

滕雯, 陈勇, 隋猛, 李法社. TEPA与[MI][C₆H₂(OH)₃COO]复配对小桐子生物柴油抗氧化性的影响[J]. 化工进展, 2020, 39(11): 4427-4434.

Wen TENG, Yong CHEN, Meng SUI, Fashe LI. Effect of TEPA and [MI][C₆H₂(OH)₃COO] compound on antioxidant property of biodiesel[J]. Chemical Industry and Engineering Progress, 2020, 39(11): 4427-4434.

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TEPA与[MI][C₆H₂(OH)₃COO]复配对小桐子生物柴油抗氧化性的影响

Effect of TEPA and [MI][C₆H₂(OH)₃COO] compound on antioxidant property of biodiesel

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