Experimental Study on Modified Fruit Shell Carbon for Methane Adsorption and Decarbonization
Yan Mao,
Li Huang,
Zhiqiang Hao,
Hongge Tao,
Chunyao Qing,
Shengyong Liu,
Guangtao Wang,
Qingyan Ma
Affiliations
Yan Mao
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Li Huang
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Zhiqiang Hao
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Hongge Tao
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Chunyao Qing
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Shengyong Liu
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Guangtao Wang
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002; Key Laboratory of New Materials and Equipment for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Zhengzhou, 450002; International Joint Laboratory of Biomass Energy and Nanomaterials in Henan Province, Zhengzhou, 450002; Henan Provincial Key Laboratory of Rural Renewable Energy, Zhengzhou, 450002
Qingyan Ma
College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002
Modification of activated carbon has the potential to improve its adsorption and separation capacity. Different concentrations of ammonia (6%, 9%, 12%, 15%) and treatment times (4 h, 6 h, 8 h, 10 h) were used to modify jujube shell carbon and coconut shell carbon in ultrasonic washing equipment. Biogas adsorption experiments were carried out with modified activated carbon to study the effect of adsorption and decarbonization on activated carbon surface functional groups. After modification, the surface alkaline functional groups of activated carbon increased, the acidic functional groups decreased, and the adsorption performance of CO2 was enhanced. In addition, the specific surface area and total pore volume of activated carbon decreased, the average pore size increased, and the degree of graphitization increased. In the experimental research range, under ultrasonic conditions, jujube shell carbon impregnated with 12% ammonia water for 4 h and coconut shell carbon impregnated with 9% ammonia water for 10 h had the best modification effect. The adsorption capacity for CO2 was 1.83 and 1.745 mmol/g, respectively, which increased by 0.8 mmol/g and 0.599 mmol/g, respectively, compared with the unmodified sample.
