Numerical and experimental investigation on capture of CO₂ and other pollutants from an SI engine using the physical adsorption technique

Abstract

Carbon dioxide (CO2) is considered as a major contributor to global warming. Automobile contributes to around 65% of total carbon dioxide emissions globally when compared with other sources. On considering the upcoming stringent emission norms, this problem needs to be addressed properly. In this proposed study, an attempt is made to capture CO2 and other emissions from spark ignition engines using activated carbon as an adsorbent. In the initial part of this study, a numerical investigation on backpressure was carried out by varying the porosity factor of activated carbon. Computational analysis is carried out by placing activated carbon at three different variations. It is done by varying three different porosity percentages 30, 35, and 45 by placing activated carbon at three different locations. The final study reveals that activated carbon placed at the PC 35‐3 layout shows optimum backpressure and high filtration efficiency when compared with the other two layouts. Then, the PC35‐3 layout is fabricated and tested on a three‐cylinder, carburetted, variable speed, water‐cooled petrol engine at various load conditions (0%, 25%, 50%, 75%, and 100%.). Final results show that considerable amount of hydrocarbon, carbon monoxide, and CO2 gets reduced while operating the engine at idle and part load conditions and reduced exhaust gas temperature.

RETRACTED: A computational and experimental study on using adsorbent to mitigate CO2 and other emissions from diesel engine

“…Therefore, the outlet pressure is regarded as the atmospheric pressure (i.e., 0 N/m 2 ). The velocity of engine exhaust is viewed as the inlet velocity (i.e., 24 m/s), which is measured with the help of an anemometer.The flow analysis through porous material is determined by the direction vector, permeability, and inertial losses [8].…”

“…Mohankumar Subramaniam et al [8] examined numerical and experimental investigation in spark ignition (SI) engine to capture exhaust emissions using activated carbon. The material's porosity is modified and located at three locations to determine the optimum backpressure and maximum filtration efficiencies.…”

Experimental Investigation to Utilize Adsorption and Absorption Technique to Reduce CO2 Emissions in Diesel Engine Exhaust Using Amine Solutions

“…emissions for the specified engine load are plotted and explained below. The complete burning of fuel increases CO 2 emissions [11]. Figure 9 depicts the relationship between CO 2 emissions and engine load.…”

Oxygen and nitrogen enriched pectin-derived micro-meso porous carbon for CO2 uptake

“…In these materials, there is no electron transfer between CO 2 , and the adsorbent and molecules are preferentially adsorbed onto the surface of adsorbents. 11 Owing to their high CO 2 capture, zeolites are widely regarded as the main materials for CO 2 adsorption applications. 12 In a previous study, the H-ZSM-5 demonstrated CO 2 adsorption of 2.6 mmol g −1 at 273 K, at 1 bar under flue gas conditions.…”