The outbreak of COVID-19 has revealed significant challenges in the field of public health security worldwide

especially in rural regions where public infrastructure is poor and public health security is insufficient. In this study

a new type of gas conditioner that combines the functions of sterilization

insect repelling

and carbon-rich fertilization is proposed considering the characteristics of rural anti-epidemic measures. The conditioner unit is based on gas-solid adsorption and solid chlorine dioxide technology. The unit adopts the method of combining four-bed electric swing adsorption carbon capture combined with a pressure swing adsorption nitrogen generation cycle method to enrich CO2 and N2. At the same time

solid chlorine dioxide is applied to the adsorbent to achieve sterilization. Based on test data and simulation models

we analyzed the effects of the temperature difference on the adsorption and desorption temperatures in the carbon capture cycle

and the outlet flow rate. We also analyzed the effects of the adsorption pressure in the nitrogen generation cycle on the separation performance (recovery rate

purity

and productivity) and energy-efficient performance (specific energy consumption

minimum separation work

second-law efficiency) of the gas conditioner. The results show that the CO2 recovery rate

purity

and productivity all increase with temperature difference; the purity of N2 decreases with an increase in outlet flow rate

and increases with the adsorption pressure; the N2 recovery rate and productivity improve with an increase in outlet flow rate and adsorption pressure; the specific energy consumption of the system increases with the increase in the adsorption pressure

and decreases with an increase in the temperature difference and the outlet flow rate; the second law efficiency shows the opposite trend to the specific energy consumption. The simulation results show that when the temperature difference is 105 K

the outlet flow rate is 0.01 m/s

and the adsorption pressure is 1 MPa

the purity of CO2 and N2 both reach the maximum

which are 80.6% VOL and 97.05% VOL

respectively. The specific energy consumption of the system was 2.13 MJ/kg

the efficiency of the second law was 4.71%

and the energy efficiency performance was better. Even under other operating conditions

the purity of CO2 is generally better than 60% VOL

N2 is generally better than 95% VOL

and other performance parameters of the system can also reach a higher level.