Koivisto, EK;
Ladommatos, N;
Gold, M;
(2015)
Compression Ignition and Exhaust Gas Emissions of Fuel Molecules Which Can Be Produced from Lignocellulosic Biomass: Levulinates, Valeric Esters, and Ketones.
Energy&Fuels
, 29
(9)
pp. 5875-5884.
10.1021/acs.energyfuels.5b01314.
Preview |
Text
Manuscript_Elina Koivisto_24.08.15.pdf Download (1MB) | Preview |
Abstract
This paper presents the results of combustion experiments conducted in a single cylinder compression ignition engine with several fuel molecules which can be produced from lignocellulosic biomass through a variety of processing routes. The lignocellulosic fuel molecules tested were ethyl levulinate, butyl levulinate, ethyl valerate, butyl valerate, pentyl valerate, 5-nonanone, 3-heptanone, dipentyl ether and three alkanes. To ensure reliable compression ignition of all of the molecules, all of the molecules were tested after adding 30 wt % of heptane to them. Levulinates were observed to have longer ignition delays than valeric esters, which in turn had longer ignition delays compared to ketones. All of the tested oxygenated molecules ignited later than the corresponding alkanes, excluding dipentyl ether. The differences in ignition delays were mainly attributed to the higher electronegativity of oxygen atoms compared to that of carbon and hydrogen atoms. The tested molecules, excluding 3-heptanone, had similar engine efficiency as that of diesel fuel. However, the oxygenated fuel molecules resulted in higher NOxemissions and higher number of small particulates in exhaust gas emissions compared to alkanes and diesel fuel.
| Type: | Article |
|---|---|
| Title: | Compression Ignition and Exhaust Gas Emissions of Fuel Molecules Which Can Be Produced from Lignocellulosic Biomass: Levulinates, Valeric Esters, and Ketones |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.energyfuels.5b01314 |
| Publisher version: | http://dx.doi.org/10.1021/acs.energyfuels.5b01314 |
| Language: | English |
| Additional information: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.energyfuels.5b01314 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1470657 |
Archive Staff Only
 |
View Item |
