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《CHINESE JOURNAL OF CATALYSIS》 1999-06
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CATALYTIC LIQUEFACTION OF TWO BITUMINOUS COAL SAMPLES USING FERROUS SULFATE

Zhang Li’an, Yang Jianli, Liu Zhenyu (State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, The Chinese Academy of Sciences, Taiyuan 030001)  
Two bituminous coal samples, YZ from Yanzhou of Shandong, and FX from Fenxi of Shanxi in China, were subjected to direct liquefaction with FeSO 4 as the catalyst precursor, which is directly loaded on the coal. After being trained by experimental data, an artificial neural network (ANN) was used to simulate the liquefaction process and to evaluate the reaction variables on catalytic performance of FeSO 4. XRD analysis and thermodynamic calculation were also carried out to probe chemical change of FeSO 4 during the liquefaction. The results showed that the optimum catalyst loading for the coal samples is about 1%, the optimum reaction condition is θ =410 ℃ and t =40 min for YZ, and θ =430 ℃ and t =1 h for FX respectively, and the FeSO 4 can only be transformed into pyrrhotite Fe 1- x S in the presence of H 2 and H 2S which is generated by sulfur compound reacted with H 2 in the coal.
【Fund】: 美国李氏基金;;国家杰出青年科学基金;;山西省自然科学基金
【CateGory Index】: O643;TQ52
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