Study on Resistance Characteristics of Honeycomb Ceramic thermal Storage Material with Different Pore Shapes and VOCs Thermal Oxidation Performance

Abstract Based on the square hole and triangular hole type honeycomb ceramic thermal storage material, this paper experimentally studies the influence of hole type, length, gas flow rate and Reynolds number on the resistance loss characteristics, and further explores the conversion characteristics of VOCs in different bed temperatures. The results show that the square hole type honeycomb ceramic has a larger equivalent diameter and less resistance loss than the triangular hole type honeycomb ceramic under the same porosity. At the same flow rate, the gas has sufficient heat transfer in the triangular hole honeycomb ceramic disturbance, and the VOCs oxidation conversion efficiency is high. When the honeycomb ceramic length is greater than 50 cm and the Reynolds number is greater than 550, the pressure loss shows a good linear increase trend with the change of the material length. When the honeycomb ceramic thermal storage material length exceeds 70 cm, the inlet effect can be ignored. When the bed temperature of the two honeycomb ceramic thermal storage material with different pore types reaches above 750 °C, the outlet VOCs concentration is below 15 mg/m 3 , and the conversion rate reaches above 97%.