eprintid: 1432897
rev_number: 33
eprint_status: archive
userid: 608
dir: disk0/01/43/28/97
datestamp: 2014-06-20 19:10:40
lastmod: 2021-10-18 00:17:14
status_changed: 2014-06-20 19:10:40
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Eveleigh, A
creators_name: Ladommatos, N
creators_name: Balachandran, R
creators_name: Marca, A
title: Conversion of oxygenated and hydrocarbon molecules to particulate matter using stable isotopes as tracers
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F45
keywords: Carbon-13; IRMS; Isotope tracing; Laminar flow reactor; Pyrolysis
note: Copyright © 2014 The Authors. Published by Elsevier Inc. on behalf of The Combustion Institute. This is an open
access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).
abstract: Fuels are continuing to be derived from fossil sources, but as production technology improves, biofuels and synthetic fuels are expected to emerge as scalable long-term sources of liquid fuels. Efforts are being made to ensure that this next-generation of fuels is cleaner burning than the last. In order to inform the production and processing of cleaner burning fuels, more needs to be known about how molecular structure influences the formation of pollutant emissions. Reducing airborne quantities of particulate matter (PM) is of particular interest for human health and the environment. This publication presents a C labelling technique, which has been developed and applied to identify the influence of local molecular structure on the formation of PM. The paper applied the technique based on the C stable isotope to trace the conversion of individual carbon atoms to PM in the case of several oxygenated and hydrocarbon molecules. A laminar tube reactor facility has been used for generating and collecting samples of PM under pyrolysis conditions. A number of single-component oxygenated and hydrocarbons (ethanol, propanol, pentanol, cyclopentanol, ethyl acetate, and toluene) have been enriched with C at specific carbon atom locations and the C/C isotope ratios of PM were measured. The contribution to PM of particular carbon atoms within a molecule was evaluated, and the results shed new light of how individual carbon atoms in a molecule convert to PM. It was found that the conversion to PM of different atoms within a molecule varies widely, depending on the identity of their neighbouring moiety. Furthermore, it was shown that oxygen-containing functional groups have a significant influence on the formation of particulates, partly through a reduction in the conversion to PM of carbon atoms, which are adjacent to oxygen atoms. © 2014 The Authors.
date: 2014-11-01
official_url: http://dx.doi.org/10.1016/j.combustflame.2014.05.008
vfaculties: VENG
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Scopus
elements_id: 955660
doi: 10.1016/j.combustflame.2014.05.008
lyricists_name: Balachandran, Ramanarayanan
lyricists_name: Eveleigh, Aaron
lyricists_name: Ladommatos, Nicos
lyricists_id: RBALA57
lyricists_id: AEVEL67
lyricists_id: NLADO43
full_text_status: public
publication: Combustion and Flame
volume: 161
number: 11
pagerange: 2966-2974
issn: 0010-2180
citation:        Eveleigh, A;    Ladommatos, N;    Balachandran, R;    Marca, A;      (2014)    Conversion of oxygenated and hydrocarbon molecules to particulate matter using stable isotopes as tracers.                   Combustion and Flame , 161  (11)   pp. 2966-2974.    10.1016/j.combustflame.2014.05.008 <https://doi.org/10.1016/j.combustflame.2014.05.008>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1432897/1/1-s2.0-S0010218014001382-main.pdf