Influence of calcination temperature for LaTi0.2Fe0.8O3 on catalytic pyrolysis of bagasse lignin
来源期刊：JOURNAL OF RARE EARTHS2019年第8期
论文作者：Haiying Wang Hongjing Han Yanan Zhang Jinxin Li Yanguang Chen Hua Song Enhao Sun Hongzhi Zhao Mei Zhang Dandan Yuan
文章页码：837 - 844
摘 要：LaTi0.2Fe0.8O3（LTF）was prepared by the sol-gel method,and the effects of calcination temperature on the structure and properties were investigated,A new method of preparing aryl oxygen-containing compounds from bagasse lignin（BL）by the catalytic pyrolysis over LTF was proposed.The results show that LTF has cubic crystal phase and porous structure and its optimal calcination temperature is 800 ℃（LTF-800）.In the test for catalytic pyrolysis of BL,with the addition of LTF-800,the yield of liquid product reaches the maximum; the contents of phenolics,guaiacols,syringols,phenylates and furans increase obviously,while those of benzenes,esters and carboxylic acid decrease.The total content of aryl oxygencompounds（including phenolics,guaiacols,syringols and phenylates）in liquid product is more than 74 wt%with the addition of LTF-800,larger than that obtained by single BL pyrolysis（62 wt%）.LTF could avoid oxygen-containing functional groups from being excessively destroyed.It has nice regeneration performance by controlled combustion of char even after 5 cycles.
Haiying Wang，Hongjing Han，Yanan Zhang，Jinxin Li，Yanguang Chen，Hua Song，Enhao Sun，Hongzhi Zhao，Mei Zhang，Dandan Yuan
摘 要：LaTi0.2Fe0.8O3（LTF）was prepared by the sol-gel method,and the effects of calcination temperature on the structure and properties were investigated,A new method of preparing aryl oxygen-containing compounds from bagasse lignin（BL）by the catalytic pyrolysis over LTF was proposed.The results show that LTF has cubic crystal phase and porous structure and its optimal calcination temperature is 800 ℃（LTF-800）.In the test for catalytic pyrolysis of BL,with the addition of LTF-800,the yield of liquid product reaches the maximum; the contents of phenolics,guaiacols,syringols,phenylates and furans increase obviously,while those of benzenes,esters and carboxylic acid decrease.The total content of aryl oxygencompounds（including phenolics,guaiacols,syringols and phenylates）in liquid product is more than 74 wt%with the addition of LTF-800,larger than that obtained by single BL pyrolysis（62 wt%）.LTF could avoid oxygen-containing functional groups from being excessively destroyed.It has nice regeneration performance by controlled combustion of char even after 5 cycles.
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