The pyrolysis of plastic waste, scrap tires and other polymeric materials in a fluidized bed has been carried out based on a scale up program (laboratory plants 70 g/h, 500 g/h, 3000 g/h, and pilot plant 20-50 kg/h). The fluidized bed shows short residence times and high heat and mass transfers, and is heated indirectly up to 600 800 OC. In the case of poly(methylmethacry1ate) (PMMA) or polysty...

This paper aims to investigate the evolution of chemical structure coal char during pyrolysis. Two bituminous coals (coals A and B) one lignite (coal C) were pyrolyzed in a fixed bed N2 from 600 °C 1100 °C. The was characterized by Raman spectroscopy X-ray diffraction (XRD). carbon oxygen functionalities analyzed photoelectron (XPS). spectroscopic parameters AD/AG (AD1/AG, AD2/AG, AD3/AG) incre...

the paper introducedeffects of modified pyrolysis tar on flue gas desulfurization. this experiment selected the pyrolysis tar as the raw material, researched the effects on desulfurization performance under different modification solution, concentration, solid liquid ratio of pyrolysis tar and modified solution, calcination temperature and calcination time by 16 group orthogonal experiments. th...

The catalytic cracking method of PAHs for the pyrolysis gaseous products is proposed to control their pollution to the environment. In this study, the Py-GC-MS is used to investigate in situ the catalytic effect of CaO and Fe2O3 on the 16 PAHs from Pingshuo coal pyrolysis under different catalytic temperatures and catalyst particle sizes. The results demonstrate that Fe2O3 is effective than tha...