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Emissions from Internal Combustion Engines

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "I2: Energy and Combustion Science".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 3491

Special Issue Editors


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Guest Editor
UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
Interests: internal combustion engines; emissions; alternative fuels; waste heat recovery
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
Interests: MILD/flameless combustion and autoignition; spray and droplet combustion; laser diagnostics of flames; high pressure combustion; finite-rate combustion models
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Human life has been fundamentally changed due to the invention and development of internal combustion engines at the start of the nineteenth century. Harnessing that power leads to the invention of a range of engines used in the smallest lawn mower to the largest trucks, buses, generators, marine, and locomotive applications. Internal combustion engines have become an irreplaceable part of human existence. In addition to being the most common means of powering the transport of people and goods, any gasoline or diesel engine is also a substantial source of air and noise pollution. Internal combustion engines burning carbonaceous fuels contribute to more than 25% of the world’s total power requirement and in doing so, they produce about 10% of the world’s greenhouse gas emission of CO2. Apart from the environmental impact, internal combustion engines cause severe impacts on the health of humans. Further emissions from internal combustion engines are unburnt hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), and particulate matter (PM). Emissions of hydrocarbons and nitrogen oxides from engines combine in the presence of sunlight to create photochemical smog. Major cities have issues with smog, which is a health hazard for humans and animals and can be toxic to plants. Furthermore, particulate matter contains over 40 mutagenic and carcinogenic chemicals. Interest in the health impacts and PM-related cancer intensified when it was discovered that organic solvent extracts of the exhaust PM were mutagenic and can travel through the circulatory system and accumulate in sensitive tissues.

This Special Issue invites contributions to highlight the most recent understanding and developments in, but not restricted to, the areas of advancement and/or new aftertreatment systems to reduce emissions from internal combustion engines, the formation and reduction of emissions from combustion engines, low-emission alternate fuels and processes, and the broader impact of emissions on public health. This Special Issue intends to act as a platform for the rapid dissemination of new knowledge in this field and promote technical and societal solutions to this critical and ever-present challenge.

Dr. Saiful Bari
Dr. Michael Evans
Guest Editors

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Keywords

  • Internal combustion engines
  • Emissions
  • Aftertreatments
  • Catalytic convertors
  • Filters
  • Renewable fuels
  • IC engines and public health
  • Emission regulations

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Published Papers (1 paper)

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Research

15 pages, 1595 KiB  
Article
The Influence of Hydrodearomatisation Reaction Kinetics on the Modelling of Sulphur and Aromatics Removal from Diesel Fuel in an Industrial Hydrotreating Process
by Sandra B. Glišić and Aleksandar M. Orlović
Energies 2021, 14(15), 4616; https://doi.org/10.3390/en14154616 - 30 Jul 2021
Cited by 3 | Viewed by 2417
Abstract
Over the years, the hydrotreating process has been considerably improved in order to facilitate the production of environmentally friendly diesel fuels by reducing sulphur and aromatics concentrations, as mandated by contemporary emissions regulations. In this study, different kinetic models for the hydrodearomatisation reaction [...] Read more.
Over the years, the hydrotreating process has been considerably improved in order to facilitate the production of environmentally friendly diesel fuels by reducing sulphur and aromatics concentrations, as mandated by contemporary emissions regulations. In this study, different kinetic models for the hydrodearomatisation reaction and the influence of reaction rate on performance of the industrial trickle bed reactor for hydrotreating of gas oil and light cycle oil fractions were analysed. The impact on reactor temperature, catalyst wetting efficiency, and conversion of sulphur and aromatics were determined. The results of simulations were compared with experimental data from an industrial test run and the best model for the observed process is proposed. Reactor performance and overall efficiency of the process is strongly dependent on the kinetics of hydrodearomatisaton with respect to aromatics conversion but even more so with respect to the temperature increase in the reactor, which affects all key catalytic reaction parameters, catalyst wetting efficiency, and thus the sulphur conversion. Based on the obtained simulation results, it could be concluded that reactor performance is strongly dependent on the hydrodearomatisation reaction. The best predictions of outlet temperature as well as sulphur and aromatic conversion (deviation from the experimental value 0.87 K, 0.01% and 2.57%, respectively) are achieved with the Langmuir–Hinshelwood kinetic model proposed by Owusu-Boakye. Full article
(This article belongs to the Special Issue Emissions from Internal Combustion Engines)
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