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Journal of Tsinghua University(Science and Technology)    2014, Vol. 54 Issue (2) : 235-239     DOI:
Orginal Article |
Pseudo-component model to predict the thermochemical behaviour of combustible solid waste
Aihong MENG,Yanqiu LONG,Hui ZHOU,Yanguo ZHANG(),Qinghai LI
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Key Laboratory for CO2 Utilization and Reduction Technology, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
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Abstract  

More than 20 kinds of typical solid waste and component compounds were analyzed using a thermogravimetric analyzer (TGA). The waste was divided into 6 groups with a pseudo-component model used to re-configurate their mass loss curves. The principal idea of the pseudo-component model was described and used to define the typical pseudo-component model and its groups. The correlation coefficient for Chinese cabbage and its pseudo-components is higher than 0.92 with similar results for orange peels, aspen branches and leaves. The re-configurated TG curves for the pseudo-components fit well with the experimental curves for the solid waste. The results show that the pseudo-component model and its groups can be used to predict the thermochemical behavior of combustible solid waste based on TGA measurements.
Keywords combustible solid waste      thermochemical characteristic      pseudo-component model     
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Issue Date: 15 February 2014
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Aihong MENG
Yanqiu LONG
Hui ZHOU
Yanguo ZHANG
Qinghai LI
Cite this article:   
Aihong MENG,Yanqiu LONG,Hui ZHOU, et al. Pseudo-component model to predict the thermochemical behaviour of combustible solid waste[J]. Journal of Tsinghua University(Science and Technology), 2014, 54(2): 235-239.
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http://jst.tsinghuajournals.com/EN/     OR     http://jst.tsinghuajournals.com/EN/Y2014/V54/I2/235
垃圾
分类		 样品
名称		 w/% Qnet,v, ar/(kJ·kg-1)
Mad Aad Vdaf
PE 0.17 0.00 99.81 184.60
塑料橡 PS 0.45 0.04 99.12 156.80
胶类 PVC 0.16 0.00 94.78 83.24
橡胶粉 0.93 10.14 62.25 143.03
米饭 9.30 0.36 76.57 63.06

厨余类		 白菜 8.50 9.07 61.85 60.13
土豆 4.80 3.00 75.7 63.47
桔皮 6.88 2.71 71.23 66.74

木竹类		 杨树枝 6.61 7.04 68.97 67.33
杨树叶 5.10 14.89 65.23 62.85

纸张类		 生活纸 6.49 0.49 84.6 62.01
打印纸 5.82 10.04 74.71 48.86
报纸 7.27 7.48 73.76 61.72
棉布 5.46 1.44 79.91 63.81
织物类 涤纶布 1.32 0.48 87.43 82.53
羊毛线 3.42 1.20 81.86 80.77
腈纶线 1.23 0.14 74.32 118.53
  
垃圾
分类		 样品
名称		 w/%
N C H S O
PE 0.00 85.66 14.08 0.39 0.00
塑料橡 PS 0.00 92.16 7.72 0.26 0.00
胶类 PVC 0.00 38.56 4.61 0.40 56.43(Cl)
橡胶粉 0.51 79.90 6.76 1.59 —
米饭 1.48 40.76 6.46 0.20 51.10

厨余类		 白菜 3.78 37.41 5.84 0.37 52.60
土豆 2.00 41.61 6.38 0.20 49.81
桔皮 1.19 42.80 5.88 0.17 49.96

木竹类		 杨树枝 1.16 46.67 5.74 0.09 46.34
杨树叶 1.05 39.64 4.19 0.25 34.88
生活纸 0.00 41.94 6.29 0.36 51.41
纸张类 打印纸 0.05 36.08 4.82 0.10 58.95
报纸 0.06 40.10 5.07 1.66 53.11
棉布 0.18 41.56 6.13 0.20 51.93
织物类 涤纶布 0.02 60.46 4.30 0.09 35.13
羊毛线 2.81 57.03 4.59 1.27 34.30
腈纶线 22.05 65.58 5.48 0.35 6.54
  
w/% Qnet,v.ar/(kJ·kg-1)
Var Mar Aar Car Har Oar Nar Sar Clar
23.72 70.19 6.09 12.08 1.86 8.96 0.50 0.10 0.22 3 527.5
  
类别 w/%
收到基比例 干基比例 水分
厨余类 77.19 61.36 76.31
纸类 6.47 11.00 49.34
橡塑类 11.37 16.09 57.80
木竹类 0.29 0.64 33.44
砖瓦陶瓷类 0.58 1.86 3.74
玻璃类 0.50 1.68 0.71
金属类 0.14 0.47 1.88
  
  
  
  
  
  
  
类别 “基元”组
厨余、木竹等生物质类 纤维素、半纤维素、木质素、
果胶、淀粉
塑料类 PE、PS、PVC
织物类 涤纶、纤维素
  
生物质 “基元”分解结果 关联度
纤维素 半纤维素 木质素 果胶
白菜 0.045 0.825 0.130 — 0.925 3
桔皮 0.175 0.520 0.065 0.240 0.955 2
杨树叶 0.265 0.365 0.370 — 0.945 8
杨树枝 0.430 0.285 0.285 — 0.947 2
  
模拟垃圾组分 干基比例/% 折算“基元”比例(占全部模拟垃圾的质量分数,%)
纤维素 半纤维素 木质素 果胶 淀粉 PE PVC 涤纶
桔皮 60.16 10.53 31.28 3.91 14.44
米饭 1.20 1.20
生活用纸 11.00 11.00
PE 14.38 14.38
PVC 1.71 1.71
棉布 3.45 3.45
涤纶 3.45 3.45
杨树枝 0.64 0.28 0.18 0.18
不可燃物 4.02
总计 100 25.26 31.46 4.09 14.44 1.20 14.38 1.71 3.45
  
  
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