微藻生物柴油的制备及其性能指标评价分析  

Preparation and Performance Evaluation of Microalgae Biodiesel

作　　者：阳国军 曾建立[2] YANG Guojun;ZENG Jianli(Development and Planning Department of Sinopec,Beijing 100728,China;Sinopec Research Institute of Petroleum Processing,Beijing 100083,China)

机构地区：[1]中国石油化工集团有限公司发展计划部,北京100728 [2]中国石化石油化工科学研究院,北京100083

出　　处：《生物质化学工程》2021年第5期47-52,共6页Biomass Chemical Engineering

基　　金：国家重点研发计划资助项目(2017YFB0306800)。

摘　　要：以微藻毛油为原料,采用近临界醇解(SRCA)工艺制备微藻生物柴油,并分析了微藻生物柴油的各项指标。分析结果表明:微藻生物柴油的密度、运动黏度、闪点、含硫量、硫酸盐灰分、含水量、机械杂质、铜片腐蚀、十六烷值、酸值、游离甘油和总甘油等12项指标符合GB/T 20828—2007对调和用生物柴油BD100的要求;10%蒸余物残炭(4.03%)、氧化安定性(0.85 h,110℃)以及90%回收温度等3项指标与国标要求存在一定的差距;冷滤点(34℃)指标也不满足实际使用要求。通过结晶过滤或馏分切割可以降低产品的冷滤点;通过馏分切割可以获得90%回收温度达标的生物柴油组分(180℃以下馏分);通过添加2000μg/g抗氧剂,可以使氧化安定性提高到9.50 h,从而达到国标要求。Microalgae biodiesel was prepared by SRCA process using microalgae crude oil as raw material.The results showed that the density,kinematic viscosity,flash point,sulfur content,sulfate ash,moisture content,mechanical impurities,copper corrosion,cetane number,acid value,free glycerol content and total glycerin of microalgae biodiesel met the requirements of GB/T 20828—2007.There was also a certain gap between the requirements of national standard for blending biodiesel BD100 and the prepared microalgae biodiesel.For example,the carbon residue of 10%bottom(4.03%),oxidation stability(0.85 h,110℃)and 90%recovery temperature were far from the requirements of national standard,and the cold filter point(34℃)also did not meet the actual use requirements.The cold filter point of the product could be reduced by crystallization filtration or distillation fraction;90%recovery temperature up to the standard could be obtained by cutting the fraction(the fraction below 180℃);the oxidation stability could be up to the standard(9.5 h)by adding 2000μg/g antioxidant,which could meet the requirement of national standard.

关 键 词：微藻生物柴油 冷滤点 90%回收温度 氧化安定性 

分 类 号：TQ35[化学工程] TK63[动力工程及工程热物理—生物能]