Development of a Non-Catalytic System for Reducing Nitric Oxide in Diesel Exhaust Using Methylamine as the reductant

以甲胺为还原剂减少柴油机尾气中一氧化氮的非催化系统的开发

• 批准号: 06555063
• 负责人: YOSHIHARA Yoshinobu
• 金额: $ 3.78万
• 依托单位: RITSUMEIKAN UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06555063/
• 关键词: SNCR; Nitric Oxide; Diesel Engine; Exhaust Gas Treatment; Methylamine

Selective non-catalytic system for reducing nitric oxide in diesel engine exhaust using methylamine (CH_3NH_2) as the reductant has been developed. The results obtained at the experiments for a part of diesel exhaust using a electrically heated quartz flow reactor show that more than 80% NO reduction ratio is achieved in the reactor temperature range of 673 K to 800 K with a molar ratio [CH_3NH_2] / [NO] of 1.0. Experiments targetting whole diesel exhaust has also been carried out. In those experiments, high speed, single cylinder, water cooled, naturally aspirated, four cycle, DI diesel engine having 876 cc of stroke volume was used as a test engine and 40% water solved methylamine was injected at a exhaust manifold using an electrically controlled gasoline injector. The results show that about 70% of NO reduction ratio is achieved at the molar ratio of 3.0 without the leak of ammonia and methylamine. It is further shown that more than 80% NO reduction ratio at the molar ratio of 1.0 can be attained bythe complete mixing of methylamine and exhaust.

研究了以甲胺（CH_3NH_2）为还原剂的选择性非催化还原柴油机排气中NO的方法。采用石英流动电加热反应器对部分柴油机尾气进行了实验研究，结果表明：在反应温度673 ~ 800 K范围内，[CH_3NH_2] / [NO]摩尔比为1.0时，NO还原率可达80%以上。并进行了针对柴油机整体排气的实验研究。在这些实验中，使用具有876 cc冲程容积的高速、单缸、水冷、自然吸气、四冲程、DI柴油发动机作为测试发动机，并且使用电控汽油喷射器在排气歧管处喷射40%水溶解的甲胺。结果表明，当氨与甲胺的摩尔比为3.0时，NO还原率可达70%左右，且无氨和甲胺泄漏。结果表明，当甲胺与尾气的摩尔比为1.0时，当甲胺与尾气完全混合时，NO还原率可达80%以上。

项目成果

吉原・西脇・中西: "ディーゼル排気NOの無触媒分解" 日本機械学会全国大会講演論文集. 95-10. 212-213 (1995)

Yoshiwara、Nishiwaki 和 Nakanishi：“柴油机废气 NO 的非催化分解”日本机械工程师学会全国会议记录 95-10（1995 年）。

吉原・田中: "メチルアミン添加によるディーゼル排気中の窒素酸化物の分解" 日本機械学会論文集. 61-582. 408-413 (1995)

Yoshihara 和 Tanaka：“通过添加甲胺分解柴油废气中的氮氧化物”，日本机械工程师学会汇刊 61-582 (1995)。

Y.Yoshihara, K.Nishiwaki and Y.Nakanishi: "Non-Catalytic Reduction in Nitrogen Oxide in a Diesel Exhaust" Proceedings of The 73th JSME Fall Annual Meeting. 95-10. 212-213 (1995)

Y.Yoshihara、K.Nishiwaki 和 Y.Nakanishi：“柴油机尾气中氮氧化物的非催化还原”第 73 届 JSME 秋季年会论文集。

Y.Yoshihara, K.Nishiwaki and Y.Nakanishi: "Non-Catalytic Reduction in Nitrogen Oxide in a Diesel Exhaust : Improvement in NO Reduction Ratio" Proceedings of The 71th JSME Kansai Branch Annual Meeting. 964-1. 134-135 (1996)

Y.Yoshihara、K.Nishiwaki 和 Y.Nakanishi：“柴油机排气中氮氧化物的非催化还原：NO 还原率的改进”第 71 届 JSME 关西分会年会会议记录。

吉原・西脇・中西: "ディーゼル排気NOの無触媒分解(続報:NO低減率の改善)" 日本機械学会関西支部定期講演会講演論文集. 964-1. 134-135 (1996)

Yoshiwara、Nishiwaki、Nakanishi：“柴油机尾气NO的非催化分解（后续报告：NO还原率的提高）”日本机械工程学会关西分会定期演讲会论文集964-1。 134-135（1996）