Modeling and chemical kinetic analysis of methanol and reformed gas (H2/ CO2) blending with ammonia under lean-burn condition

被引：36

作者：

Meng, Xiangyu ^{[1
]}

Liu, Lizi ^{[1
]}

Qin, Meichao ^{[1
]}

Zhu, Wenchao ^{[1
]}

Long, Wuqiang ^{[2
]}

Bi, Mingshu ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, Dalian 116024, Liaoning, Peoples R China

[2] Dalian Univ Technol, Inst Internal Combust Engine, Dalian 116024, Liaoning, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 58卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Hydrogen/ammonia/methanol; Methanol reforming; Chemical kinetics; Lean-burn condition; NO formation and reduction; IGNITION DELAY-TIME; NH3/H-2/AIR PREMIXED FLAMES; ELEVATED PRESSURE; WASTE-HEAT; LAMINAR; VELOCITY; HYDROGEN; OXIDATION; MIXTURES; NOX;

D O I：

10.1016/j.ijhydene.2024.01.150

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hydrogen can be easily produced by methanol steam reforming. This work aims to investigate the effects of methanol addition and its reformed gas of H2/CO2 on ammonia combustion under lean -burn operation. A newlydeveloped reaction mechanism for NH3, H2, CH3OH, CO and their blends was established based on the highlyprecise validations of laminar burning velocity (LBV), nitrogen monoxide (NO) and ignition delay time (IDT). The premixed flame analysis showed that methanol blends and reforming with hydrogen addition can greatly enhance the combustion rate, resulted from the chemical effect. The equivalence ratio (ER) can be extended to 0.45 for a methanol blending ratio of 60 % and reforming ratio of 90 % (M60R90) to achieve the similar level of LBV at pure ammonia at an ER of 1.0 under ambient condition. The methanol blends and reforming lead to the increase of NO, while the lean -burn operation can help to reduce the NO emission.

引用

页码：190 / 199

页数：10

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