Thermogravimetric characteristics and pyrolysis kinetics of high-density-aquacultured Saccharina Japonica: Effects of water-washing

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• 作者：Jae Hyung Choi^a ; ^b ; Seung-Soo Kim^a ; ^{sskim2008@kangwon.ac.kr} ; Hoang Vu Ly^a ; Jinsoo Kim^c ; ^{jkim21@khu.ac.kr} ; Hee Chul Woo^d
• 关键词：Brown algae ; High-density-cultured Saccharina japonica ; Water-washing ; Pyrolysis ; Lump kinetic model
• 刊名：Fuel
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：193
• 期：Complete
• 页码：159-167
• 全文大小：766 K
• 卷排序：193

文摘

The thermogravimetric characteristics and pyrolysis kinetics of high-density-aquacultured Saccharina japonica were investigated using a thermogravimetric analyzer and micro-tubing reactor, respectively. The effect of water washing S. japonica samples on pyrolysis product distribution was studied at 360, 370 and 380 °C with various residence times from 1.0 to 3.0 min. The kinetic rate constants of pyrolysis for untreated and water-washed S. japonica samples were determined using nonlinear least-squares regression of experimental data assuming first-order kinetics. The predominant reaction pathway of water-washed S. japonica was liquid to gas product (k3) at each temperature, while that of untreated S. japonica was biomass to liquid product (k2) at 360 and 370 °C, then liquid to gas product (k3) at 380 °C. However, the k2/k1 ratio of water-washed S. japonica (1.2166–1.3247) was more than two times that of untreated S. japonica (0.5763–0.6346).