Selective catalytic reduction of NOx by diesel fuel: Plasma-assisted HC/SCR system

被引：32

作者：

Cho, Byong K. ^{[1
,2
]}

Lee, Jong-Hwan ^{[1
]}

Crellin, Chris C. ^{[1
]}

Olson, Keith L. ^{[1
]}

Hilden, David L. ^{[1
]}

Kim, Mun Kyu ^{[2
]}

Kim, Pyung Soon ^{[2
]}

Heo, Iljeong ^{[2
]}

Oh, Se H. ^{[1
]}

Nam, In-Sik ^{[2
]}

机构：

[1] Gen Motors Global R&D Ctr, Warren, MI 48090 USA

[2] Pohang Univ Sci & Technol POSTECH, Pohang 790784, South Korea

来源：

CATALYSIS TODAY | 2012年 / 191卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Oxygenated hydrocarbon (OHC); Hyperplasma reactor; BaY; CuY; Dual-bed catalytic reactor; NITRIC-OXIDE; SCR; NAY;

D O I：

10.1016/j.cattod.2012.03.044

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new NOx reduction system has been developed which can reduce NOx emissions in diesel engine exhaust using oxygenated hydrocarbons (OHCs) generated from diesel fuel reforming as the primary reductants. The system consists of a sidestream hyperplasma reactor, a diesel fuel reformer and a dual-bed catalytic reactor. A unique feature of this system is a diesel fuel reformer that can produce highly reactive OHCs for NOx reduction. Steady-state performance as well as simulated FTP performance of this system for NOx reduction was evaluated in a sidestream connected to the main exhaust stream of a 4.9L, 6-cylinder Isuzu diesel engine dynamometer system. A dual-bed (BaY + CuY) catalyst yielded a mode-average FTP NOx conversion of 61% when the catalyst volume was 3.6 times the engine displacement. NOx reduction efficiency of the reformed diesel fuel was compared with that of an ethanol-dodecane mixture, E-diesel and NH3 in laboratory microreactor experiments and engine dynamometer tests. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：20 / 24

页数：5

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