مهرداد قاسمي

This study investigates the impact of particle size and mass flow rate on the adsorption/desorption (A/D) process using granular activated carbon (GAC) and methanol. GAC and graphene family members have desirable properties such as high surface area and porosity, but their applications are limited by factors including low adsorption capacity and poor recyclability. The research aims to enhance GAC characteristics like energy density, recoverability, conductivity, adsorption capacity, and efficiency, which are beneficial for applications in energy storage, air purification, medicine, food industry, and water treatment. Experimental findings reveal that higher mass flow rates increase maximum adsorption temperatures but lead to instability. Conversely, lower mass flow rates show a linear behavior in adsorbed amount in time. The study eva‎luates temperature, adsorbed/desorbed amounts, and specific cooling power (SCP) to determine optimal particle size. Results indicate that while the 20×30 grain size (0.7 mm particle size) has higher adsorption temperatures and lower desorption temperatures, reducing particle size decreases SCP, adsorption capacity, and efficiency. Therefore, the 20×8 grain size (1.6 mm particle size) is identified as the optimal choice for the A/D process.

ظرفيت جذب سطحي، كربن فعال، اندازه ذرات، سرمايش واجذب

Granular activated carbon, Adsorption capacity, Desorption cooling, Particle size, adsorbed amount

Mehrdad Ghasemi

Dr. Siyavashi