Conversion of Exhaust Gases from Dual-Fuel (Natural Gas-Diesel) Engine under Ni-Co-Cu/ZSM-5 Catalysts Houston Advanced Research Center

Format:

Conference/Event

Author/Creator:

Meng, Meng, author.

Contributor:

Colvin, John

Haut, Richard

LaFleur, Carolyn

Wijesinghe, Asanga

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractNatural gas (NG), which consists of mostly methane, can be co-combusted with diesel fuel in existing compression ignition engines through dual fuel technology with reasonable engine modifications. The removal of short-chain alkanes (e.g. CH4, C2H6 and C3H8) of a dual fuel (natural gas and diesel) engine raises a distinctive topic to the exhaust aftertreatment system (ATS). However, there are few studies reported based on tests with real engine exhaust. This present study focuses on the conversion of short-chain alkanes by Co, Ni and Cu/ZSM-5 catalysts, which are commonly used for oxidation/partial oxidation and reforming. These catalysts are tested with exhaust of a dual-fuel (natural gas and diesel) engine. The complicated and dynamic exhaust composition, determined by the engine loading and natural gas substitution, can result in different components in the exhaust and various conversions for species. Co-Ni-Cu/ZSM-5 had the highest conversion of CH4 and non-methane hydrocarbon (NMHC) at 30000 h-1 space velocity (SV) when the engine was operated at 1000 RPM, 25% loading, 70% natural gas substitution. Significant amounts of CO and formaldehyde were generated by the dual fuel engine, but can be mostly converted starting at 450 °C. Methane conversion of up to 42% was attainable at a higher temperature of 500 °C by using Co-Ni-Cu/ZSM-5 in the aftertreatment system

Notes:

Vendor supplied data

Publisher Number:

2017-01-0908

Access Restriction:

Restricted for use by site license