Abstract
Diesel-powered transportation is considered an efficient method of transportation; this sees the increase in the demand for the diesel engine. But diesel engines are considered to be one of the largest contributors to environmental pollution. The automobile sector accounts for the second-largest source for increasing CO2 emission globally. In this experiment, a suitable postcombustion treatment to control CO2 emission from IC engine exhaust is developed and tested. This work focuses to control CO2 emission by using the chemical adsorbent technique in diesel engine exhaust. An amine-based liquid is used to adsorb the CO2 molecules first and absorb over the amines from the diesel engine exhaust. Three types of amino solutions (L-alanine, L-aspartic acid, and L-arginine) were prepared for 0.3 mole concentrations, and the CO2 absorption investigation is performed in each solution by passing the diesel exhaust. A suitable CO2 adsorption trap is developed and tested for CO2 absorption. The experiments were performed in a single-cylinder diesel engine under variable load conditions. The eddy current dynamometer is used to apply appropriate loads on the engine based on the settings. The AVL DIGAS analyzer was used to measure the CO2, HC, and CO emissions. An uncertainty analysis is carried out on the experimental results to minimize the errors in the results. The effective CO2 reduction was achieved up to 85%, and simultaneous reduction of HC and CO was also observed.
Highlights
Global climate change is one of the main problems addressed by many researchers
Adsorption Science & Technology method to control the CO2 emission should be in place, or by the year 2030, it is expected to increase the global earth temperature to 3.1°C-3.7°C [5]
CO2 emissions are considered to be a dangerous pollutant liberated from the internal combustion engines (ICE)
Summary
Global climate change is one of the main problems addressed by many researchers. The increase of greenhouse gases such as carbon dioxide (CO2), methane, and nitrous oxide [1] has raised the global earth temperatures by around 2° since the preindustrial revolution [2]. Adsorption Science & Technology method to control the CO2 emission should be in place, or by the year 2030, it is expected to increase the global earth temperature to 3.1°C-3.7°C [5]. In an IC engine, complete combustion leads to higher power and reduced HC, CO, and smoke in the exhaust [6]. The main technologies for postcombustion CO2 capture are membrane separation, amine absorption, cryogenic separation, and physical adsorption. These are the technologies followed by the industry or power plant to control CO2 emission [8]. Amine absorption and physical absorption techniques are the most effective methods followed in the industry for postcombustion treatment of flue gases [9]. An novel attempt is made to utilize an amine-based solution to trap the CO2 gas directly from the tailpipe of the diesel engine exhaust
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