Technology of energy recovery type waste PVC and glass simultaneous treatment processing that makes alkali-halogen flow proper

采用实验室规模的固定床和流化床反应器，在玻璃微珠粒径为1.500 μ m、钠转化率为1.08、氯化氢分压为1.09atm的条件下，测定了玻璃微珠中钠与氯化氢反应的中和速率。中和速率受钠在玻璃中的扩散速率控制，扩散速率为3.3×10^<-16>m^2/s。提出了一种由粗粒玻璃固定床反应器和细粒玻璃流化床反应器组成的两级中和器。根据速率数据设计了适当的工艺，重点关注整体能源效率，包括玻璃研磨的功耗。在适当的工艺中，碎玻璃被研磨成平均直径为100μm，然后进行分级筛分。粗颗粒（d&gt;150μm）用于固定床反应器，细颗粒（d&lt;150μm）用于流化床反应器，进行了细颗粒流化床中和器的实验室示范。在演示实验中，观察到了反流化问题。氯化钠在玻璃表面的沉积增加了玻璃颗粒之间的粘附力。在玻璃床中加入细炭颗粒可以有效地防止反流化。在玻璃微珠中加入10wt%以上的细炭颗粒可以有效地防止反流化现象的发生，且不会对中和速率产生不利影响。确定了中和反应热为321 kJ/mol，以中和反应热为基准计算，适宜工艺的能量效率为77.7%

Neutralization rate of reaction between hydrogen chloride and sodium including in glass beads was determined under varied conditions of 〜500μ m in particle diameters, 〜0.8 in sodium conversion and 〜0.9 atm in partial pressures of hydrogen chloride by using laboratory scale fixed bed and fluidized bed reactors. The neutralization rate was found to be controlled by diffusion rate of sodium in glass and the diffusivity was 3.3×10^<-16> m^2/s.A two stage neutralizer was proposed to be consisting of a fixed bed reactor for coarse glass particles and a fluidized bed reactor for fine glass particles. The appropriate processes were designed based on the rate data focusing on the overall energy efficiency including power consumption by glass grinding. In the appropriate processes glass cullet is ground into 100μm in the average diameter then classified sieved. Coarse particles (d>150μm) are used in the fixed bed reactor and fine particles (d<150μm) are used in fluidized bed reactor.Lab-scale demonstration of fluidized bed neutralizer for fine particles was carried out. In the demonstration experiments a defluidization problem was observed. Adhesive force between glass particles was increased by deposition of sodium chloride on the glass surface. An addition of fine char particles into the glass bed was found to be effective to prevent the defluidization. The addition of fine char particles more than 10wt% of glass bed was found to prevent the defluidization with no mal-effect for the neutralization rate.Closed flow differential scanning calorimetry (CF-DSC) was developed for direct measurement of neutralization reaction heat of reaction for hydrogen chloride reaction with sodium in glass beads. The neutralization reaction heat was determined as 321 kJ/mol.Based on the neutralization reaction heat the energy efficiency of the appropriate process was 77.7%