CIESC Journal ›› 2023, Vol. 74 ›› Issue (4): 1680-1692.DOI: 10.11949/0438-1157.20221399
• Energy and environmental engineering • Previous Articles Next Articles
Jiajing BAO1(), Hongfei BIE1, Ziwei WANG1, Rui XIAO1, Dong LIU2, Shiliang WU1()
Received:
2022-10-24
Revised:
2023-03-01
Online:
2023-06-02
Published:
2023-04-05
Contact:
Shiliang WU
包嘉靖1(), 别洪飞1, 王子威1, 肖睿1, 刘冬2, 吴石亮1()
通讯作者:
吴石亮
作者简介:
包嘉靖(1997—),男,硕士研究生, bjiajing@163.com
基金资助:
CLC Number:
Jiajing BAO, Hongfei BIE, Ziwei WANG, Rui XIAO, Dong LIU, Shiliang WU. The effects of adding long-chain ethers in n-heptane counterflow diffusion flames on the formation characteristics of soot precursors[J]. CIESC Journal, 2023, 74(4): 1680-1692.
包嘉靖, 别洪飞, 王子威, 肖睿, 刘冬, 吴石亮. 正庚烷对冲扩散火焰中添加长链醚类对碳烟前体生成特性的影响[J]. 化工学报, 2023, 74(4): 1680-1692.
项目 | 正庚烷 | 正庚烷+ 25%TPGME | 正庚烷+ 25%PODE |
---|---|---|---|
燃料端 | |||
燃料/(ml/min) | 0.30 | 0.30 | 0.30 |
N2/(L/min) | 0.30 | 0.30 | 0.30 |
氧化剂端 | |||
O2/(L/min) | 0.16 | 0.16 | 0.16 |
N2/(L/min) | 0.34 | 0.34 | 0.34 |
屏蔽气 | |||
N2/(L/min) | 4.0 | 4.0 | 4.0 |
Table 1 The counterflow diffusion flame experiment setups
项目 | 正庚烷 | 正庚烷+ 25%TPGME | 正庚烷+ 25%PODE |
---|---|---|---|
燃料端 | |||
燃料/(ml/min) | 0.30 | 0.30 | 0.30 |
N2/(L/min) | 0.30 | 0.30 | 0.30 |
氧化剂端 | |||
O2/(L/min) | 0.16 | 0.16 | 0.16 |
N2/(L/min) | 0.34 | 0.34 | 0.34 |
屏蔽气 | |||
N2/(L/min) | 4.0 | 4.0 | 4.0 |
项目 | 正庚烷 | TPGME | PODE3 | PODE4 | PODE5 |
---|---|---|---|---|---|
化学式 | C7H16 | C10H22O4 | C5H12O4 | C6H14O5 | C7H16O6 |
分子量/(g/mol) | 100.2 | 206.3 | 136.1 | 166.2 | 196.2 |
密度(20℃)/(g/cm3) | 0.68 | 0.97 | 1.02 | 1.06 | 1.10 |
黏度(20℃)/(mm2/s) | 0.59 | 5.50 | 1.03 | 1.65 | 2.04 |
低位发热量/(MJ/kg) | 44.6 | 28.1 | 19.1 | 18.4 | 17.8 |
汽化潜热/(kJ/kg) | 318 | 210 | — | — | — |
沸点/℃ | 98 | 243 | 156 | 202 | 242 |
十六烷值 | 56 | 81 | 78 | 90 | 100 |
含氧量/%(质量) | 0 | 31.0 | 47.1 | 48.2 | 49.0 |
Table 2 The physicochemical properties of n-heptane, TPGME, and PODE[7,33]
项目 | 正庚烷 | TPGME | PODE3 | PODE4 | PODE5 |
---|---|---|---|---|---|
化学式 | C7H16 | C10H22O4 | C5H12O4 | C6H14O5 | C7H16O6 |
分子量/(g/mol) | 100.2 | 206.3 | 136.1 | 166.2 | 196.2 |
密度(20℃)/(g/cm3) | 0.68 | 0.97 | 1.02 | 1.06 | 1.10 |
黏度(20℃)/(mm2/s) | 0.59 | 5.50 | 1.03 | 1.65 | 2.04 |
低位发热量/(MJ/kg) | 44.6 | 28.1 | 19.1 | 18.4 | 17.8 |
汽化潜热/(kJ/kg) | 318 | 210 | — | — | — |
沸点/℃ | 98 | 243 | 156 | 202 | 242 |
十六烷值 | 56 | 81 | 78 | 90 | 100 |
含氧量/%(质量) | 0 | 31.0 | 47.1 | 48.2 | 49.0 |
反应物 | 距离/mm | 正庚烷转化率/% |
---|---|---|
正庚烷 | 0.90 | 30.0 |
25%TPGME | 0.85 | 29.1 |
25%PODE | 0.85 | 29.9 |
Table 3 The locations used for the analysis of reaction kinetics
反应物 | 距离/mm | 正庚烷转化率/% |
---|---|---|
正庚烷 | 0.90 | 30.0 |
25%TPGME | 0.85 | 29.1 |
25%PODE | 0.85 | 29.9 |
Fig.6 The variations of peak mole fraction and the rate of productions for C2H2 [(a),(b)], C2H4 [(c),(d)], and C3H6 [(e),(f)] in n-C7H16, 25%TPGME, 25%FTPGME, 25%PODE and 25%FPODE flames
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