Entropy generation minimization of an advanced two-bed adsorption refrigeration system

Yagnamurthy, Sai; Chauhan, Pankaj; Saha, Bidyut Baran; Tyagi, S. K.

doi:10.1016/j.icheatmasstransfer.2022.106461

Cited by 10 publications

(1 citation statement)

References 41 publications

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“…It can be sourced from natural and economically viable origins, providing a high surface area, porosity, and pore volume-critical factors for enhanced adsorption [5]. Furthermore, unlike silica adsorbent [6], activated carbon stands out due to its straightforward processing methods [7]. Therefore, the present investigation emphasizes the preparation of pistachio shell-derived activated carbon with two-step optimization followed by characterization and CO 2 capture assessment.…”

Section: Introductionmentioning

confidence: 99%

Optimization Strategy for the Synthesization of Carbonaceous Adsorbent from Waste Biomass for Sustainable Energy Applications

Chauhan,

Tyagi

2023

Advances in Transdisciplinary Engineering

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In the present article, a two-step optimization strategy for the production of micro and meso- pores carbonaceous material has been proposed. The waste pistachio shell is utilized as precursor material to synthesize activated carbon on account of its high carbon and low ash content. The synthesization of pistachio shell-derived activated carbon (PSAC) includes carbonization and KOH-activation. The proposed mathematical modeling for the first step of optimization considers the effect of moisture content, the molecular mass of carbon and hydrogen constituents present in the carbonized samples, and the H/C ratio. The carbonized product is found to be best at the carbonization temperature of 562.5 °C based on the biochar throughput (TP) and percentage stable carbon content (%Cs). However, the second step of the optimization has been carried out on the basis of N2 adsorption-desorption analysis and it recommends the best PSAC with the highest specific surface area of 703 m2/g with more than 55% of micropore volume. Further, the CO2 capture assessment alongwith characterization is carried out, and PSAC2 is found to be the best adsorbent in terms of the highest amount of CO2 capture.

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Section: Introductionmentioning

confidence: 99%