STUDY ON FABRICATION CONDITIONS FOR ACTIVATED CARBON FIBRE ADSORBENTS FOR CO2 CAPTURE
A large amount of CO2 is generated by coal and gas fired power plants every year. In Australia, electricity generation is by far the largest source of CO2 emission contributing approximately 34％ of the total emissions. Adsorption is considered to have advantages over other conventional methodologies for CO2 capture, including amine based scrubbing. Activated carbon fibre adsorbents have appealing characteristics, such as large surface area, high permeability and large micropore volume. This work aims to find out the optimum conditions to produce activated carbon fibre adsorbents specifically for CO2 capture. The fabrication procedure for activated carbon fibre adsorbents involves vacuum moulding, drying, curing, carbonisation by N2 and activation by CO2. First of all, efforts were made to confirm that samples can be activated uniformly in the lab so that the micropore structure of the samples can be closely controlled. Secondly, samples made from carbon fibres based on three different precursors, including polyacrylonitrile, pitch and activated pitch, were prepared and characterised. As a result, polyacrylonitrile carbon fibre was discarded due to its poor performance. Lastly, two experimental designs, a screening design and an optimisation design, were built using “The Unscrambler software by CAMO Inc. The screening design aimed to find out the significant effects of each variable, while the optimisation design was carried out to find out the optimum conditions that yield the optimal response.
Greenhouse gas CO2 capture activated carbon fibre adsorbents
Hui AN Ramesh Thiruvenkatachari Xingxiang YU Bo FENG Shi SU
CSIRO, PO Box 883, Kenmore, Qld 4069, Australia Division of Mechanical Engineering, The University o CSIRO, PO Box 883, Kenmore, Qld 4069, Australia Division of Mechanical Engineering, The University of Queensland, Brisbane, Qld 4072 Australia
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
796-803
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）