首页|兰炭灰固碳对复合相变储热材料性能的影响

兰炭灰固碳对复合相变储热材料性能的影响

扫码查看
为推动"双碳"战略,促进工业固废兰炭灰的低成本消纳,开发新型绿色低碳复合材料,提出在已有的兰炭灰/硝酸钠复合相变储热材料基础上,利用兰炭灰进行碳捕捉.对固碳前、后兰炭灰及复合相变储热材料的性能进行研究.结果表明:兰炭灰碳捕集的最佳条件为气体组分20%CO2/80%N2、通气时间40min、加热温度650 ℃;在最佳实验条件下,兰炭灰的固碳率达到29.27%,所制得的复合相变储热材料固碳兰炭灰/NaNO3的最佳质量比为5:5,在100~380 ℃储热密度达到288.65 J/g,拥有更好的机械性能、热稳定性及化学相容性.固碳兰炭灰作为骨架材料制备复合相变储热材料具有较好的可行性,为工业固废兰炭灰的资源化利用和碳排放处理提供了新的途径.
Effect of semi-coke ash carbon capture on property of phase change composites
To achieve the carbon peak and neutrality targets,facilitate low-cost disposal of industrial solid wastes(namely semi-coke ash),and develop new green and low-carbon composite materials,carrying out carbon capture using semi-coke ash is proposed,based on the existing semi-coke ash/sodium nitrate composite phase change heat storage materials.The performance of semi-coke ash and composite phase change heat storage materials before and after carbon sequestration is studied.The results indicate that,the optimal conditions for carbon sequestration in semi-coke ash are:gas composition of 20%CO2/80%N2,ventilation time of 40 minutes,and heating temperature of 650 ℃.Under the optimal experimental conditions,the carbon sequestration rate of semi-coke ash reaches 29.27%.The optimal mass ratio of the resulting composite phase change heat storage material,namely the carbon-sequestered semi-coke ash to NaNO3 is 5:5.It achieves a heat storage density of 288.65 J/g at 100~380 ℃,with better mechanical properties,thermal stability,and chemical compatibility.The use of carbon-sequestered semi-coke ash as a skeletal material to prepare composite phase change heat storage materials is highly feasible,providing a new approach for the resource utilization and carbon emission treatment of industrial solid wastes,namely semi-coke ash.

solid wasteskeleton materialcomposite materialheat storage performancemechanical property

熊亚选、尹心成、药晨华、任静、吴玉庭、张灿灿、丁玉龙

展开 >

北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京 100044

北京市热力集团有限责任公司朝阳第一分公司,北京 100102

北京中建建筑科学研究院有限公司,北京 100076

北京工业大学传热强化与过程节能教育部重点实验室,北京 100124

伯明翰大学伯明翰储能中心,伯明翰B15 2TT

展开 >

固体废弃物 骨架材料 复合材料 储热性能 力学性能

北京市自然科学基金重点项目

3151001

2024

热力发电
西安热工研究院有限公司,中国电机工程学会

热力发电

CSTPCD北大核心
影响因子:0.765
ISSN:1002-3364
年,卷(期):2024.53(7)
  • 13