Influence of Calcination on SiO2 Utilization Ratio of Oil Shale Residues from Different Processing MethodsReport as inadecuate




Influence of Calcination on SiO2 Utilization Ratio of Oil Shale Residues from Different Processing Methods - Download this document for free, or read online. Document in PDF available to download.

The aim of the present study was to experimentally investigate the influence of calcination on SiO2 utilization ratios of oil shale residues. Three kinds of residues were selected from different processing methods including retorting carbocoal by solid heat carrier method, retorting carbocoal of Fushun-type and fine residues from a circulating fluidized-bed of a power station. Effects of calcination temperature, calcination time and particle size were analyzed with XRD patterns. Results show that a maximum SiO2 leaching rate of 80% can be received from the carbocoal by solid heat carrier method after calcination activation at 850 oC for 0.5 h, while those for the carbocoal of Fushun-type and residues from a power station are 75% and 60%, respectively, without the need of calcinations.

KEYWORDS

oil shale residue; calcination; utilization ratio of SiO2; XRD pattern

Cite this paper







Author: Yingmei Xu, Demin He, Dongmei Wang, Jiawei Shi, Jun Guan, Qiumin Zhang

Source: http://www.scirp.org/



DOWNLOAD PDF




Related documents