Claudia Sheinbaum1Marco V Balam2Guillermo Robles1Sebastian Lelo de Larrea1Roberto Mendoza11Instituto...

1. Biodiesel from waste cooking oil in Mexico City
Claudia Sheinbaum1
Marco V Balam2
Guillermo Robles1
Sebastian Lelo de Larrea1
Roberto Mendoza1
1Instituto de Ingenieria, Universidad Nacional Autónoma de México, Mexico DF, Mexico
2Ambientalis Environmental Consulting, Mexico DF, Mexico
Claudia Sheinbaum, Instituto de Ingenieria, Universidad Nacional Autónoma de México, Ciudad
Universitaria, México DF 04510,
Mexico. Email: csheinbaumpatii.unam.mx
Abstract
The aim of this article is to evaluate the potential use of biodiesel produced from waste cooking oil in
Mexico City. The
study is divided in two main areas: the analysis of a waste cooking oil collection pilot project
conducted in food markets
of a Mexico City region; and the exhaust emissions performance of biodiesel blends measured in
buses of the Mexico City public
bus transportation network (RTP). Results from the waste cooking oil collection pilot project show
that oil quantities disposed
depend upon the type of food served and the operational practices in a cuisine establishment. Food
markets' waste cooking
oil disposal rate from fresh oil is around 10%, but with a very high standard deviation. Emission tests
were conducted using
the Ride-Along-Vehicle-Emissions-Measuring System in two different types of buses while travelling
a regular route. Results
shows that the use of biodiesel blends reduces emissions only for buses that have exhaust gas
recirculation systems, as analysed
by repeated measure analysis of variance. The potential use in Mexico City of waste cooking oil for
biodiesel is estimated

2. to cover 2175 buses using a B10 blend.
Article Notes
Declaration of conflicting interests The author(s) declared no potential conflicts of interest with
respect to the research, authorship, and/or publication of
this article.
Funding The author(s) disclosed receipt of the following financial support for the research,
authorship, and/or publication of this
article: The study project was supported by the Ministry of Science, Technology and Innovation of
Mexico City, and it was
conducted by a research group at UNAM, with the participation of a private producer of biodiesel
and the local government
of the Delegación Cuauhtémoc.