碘值对生物柴油燃烧颗粒物粒径分布和碳质组分的影响

杜家益; 杨启航; 张登攀; 王益凡; 蒋胜; 袁银男

doi:10.7652/xjtuxb202105003

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碘值对生物柴油燃烧颗粒物粒径分布和碳质组分的影响

更新时间：2025-07-09

- 碘值对生物柴油燃烧颗粒物粒径分布和碳质组分的影响
- Effect of Iodine Value on the Particle Size Distribution and Carbon Component of Three Biodiesels
- 西安交通大学学报 2021年55卷第5期页码：18-24
- 作者机构：
  
  江苏大学汽车与交通工程学院,江苏,镇江,212013
- 作者简介：
- 基金信息：
  
  : 2020-08-15。作者简介: 杜家益(1968—),男,副教授;张登攀(通信作者),男,讲师。基金项目: 国家自然科学基金资助项目(51876133)
- DOI：10.7652/xjtuxb202105003
  中图分类号： TK421.5
- 网络首发：2021-05-10，
  
  纸质出版：2021
- 稿件说明：
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杜家益, 杨启航, 张登攀, 等. 碘值对生物柴油燃烧颗粒物粒径分布和碳质组分的影响[J]. 西安交通大学学报, 2021,55(5):18-24.

Effect of Iodine Value on the Particle Size Distribution and Carbon Component of Three Biodiesels[J]. 2021, 55(5): 18-24.
杜家益, 杨启航, 张登攀, 等. 碘值对生物柴油燃烧颗粒物粒径分布和碳质组分的影响[J]. 西安交通大学学报, 2021,55(5):18-24. DOI： 10.7652/xjtuxb202105003.

Effect of Iodine Value on the Particle Size Distribution and Carbon Component of Three Biodiesels[J]. 2021, 55(5): 18-24. DOI： 10.7652/xjtuxb202105003.

摘要

为研究碘值对生物柴油燃烧颗粒物排放特性的影响

采用颗粒物粒径谱仪和碳分析仪对不同原料生物柴油燃烧颗粒物的粒径分布和碳质组分进行分析。结果表明

在发动机最大转矩转速2 400 r/min、100%负荷下

燃用生物柴油最大爆发压力、燃烧温度和燃烧持续期均高于柴油

且碘值越大

燃烧持续期越短。燃用生物柴油可有效降低颗粒物排放

最大降幅达85%

且颗粒物粒径减小; 碘值越大

颗粒物生成数量越多

碘值较大的大豆油甲酯颗粒物排放量是碘值低的地沟油甲酯颗粒物的5.3倍。颗粒物碳质组分中有机碳(OC)主要组成是OC1和OC4

其质量占总碳(TC)质量的60%以上; 元素碳(EC)主要组分是EC2

其质量占EC质量的50%以上。柴油颗粒物OC和EC的质量比R为7.4

生物柴油颗粒物的R为18.2～24.5

且生物柴油碘值越大

R越大。选用碘值较小的生物柴油

能更有效地降低颗粒物的排放。

Abstract

In order to study the effect of iodine value on the emission characteristics of biodiesel combustion particulate matter

the engine exhaust particle sizer and carbon analyzer were used to analyze the particle size distribution and carbon component of particulate matter from different biodiesels. The results show that the maximum explosion pressure

combustion temperature and combustion duration of three biodiesels are higher than that of diesel at the maximum engine torque speed 2 400 r/min and 100% load. The greater the iodine value is

the shorter the combustion duration becomes. The use of biodiesel can effectively reduce the amount of particulate matter emissions

with a maximum reduction of 85%

and the particle size of biodiesel particles is decreased. The higher the iodine value is

the more the particulate matter is produced. The emission concentration of soybean oil methyl ester particles with larger iodine value is 5.3 times that of waste oil methyl ester particles with lower iodine value. The main components of organic carbon(OC)in the carbonaceous component of particulate matter are OC1 and OC4

which account for more than 60% of the total carbon(TC). The main component of elemental carbon(EC)is EC2

which accounts for more than 50% of the total EC. The ratio of diesel particulate organic carbon(OC)to elemental carbon(EC)in the carbonaceous component of particulate matter is 7.4

and the biodiesel OC/EC value is 18.2-24.5. The higher the iodine value of biodiesel

the higher the OC/EC value of particulate matter carbon component. Using biodiesel with lower iodine value can reduce particulate matter emission more effectively.

关键词

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