Cost of non-renewable energy in production of wood pellets in China  

作　　者：Changbo WANG Lixiao ZHANG Jie LIU 

机构地区：[1]State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China [2]Transport Planning and Research Institute, Ministry of Transport, Beijing 100028, China

出　　处：《Frontiers of Earth Science》2013年第2期199-205,共7页地球科学前沿（英文版）

摘　　要：Assessing the extent to which all bio-fuels that are claimed to be renewable are in fact renewable is essential because producing such renewable fuels itself requires some amount of non-renewable energy （NE） and materials. Using hybrid life cycle analysis （LCA）--from raw material collection to delivery of pellets to end users--the energy cost of wood pellet production in China was estimated at 1.35 J/J, of which only 0.09 J was derived from NE, indicating that only 0.09 J of NE is required to deliver 1 J of renewable energy into society and showing that the process is truly renewable. Most of the NE was consumed during the conversion process （46.21%） and delivery of pellets to end users （40.69%）, during which electricity and diesel are the two major forms of NE used, respectively. Sensitivity analysis showed that the distance over which the pellets are transported affects the cost of NE significantly. Therefore the location of the terminal market and the site where wood resources are available are crucial to saving diesel.Assessing the extent to which all bio-fuels that are claimed to be renewable are in fact renewable is essential because producing such renewable fuels itself requires some amount of non-renewable energy （NE） and materials. Using hybrid life cycle analysis （LCA）--from raw material collection to delivery of pellets to end users--the energy cost of wood pellet production in China was estimated at 1.35 J/J, of which only 0.09 J was derived from NE, indicating that only 0.09 J of NE is required to deliver 1 J of renewable energy into society and showing that the process is truly renewable. Most of the NE was consumed during the conversion process （46.21%） and delivery of pellets to end users （40.69%）, during which electricity and diesel are the two major forms of NE used, respectively. Sensitivity analysis showed that the distance over which the pellets are transported affects the cost of NE significantly. Therefore the location of the terminal market and the site where wood resources are available are crucial to saving diesel.

关 键 词：wood pellet non-renewable energy （NE） hybrid life cycle analysis （LCA） BIO-FUEL 

分 类 号：TS69[轻工技术与工程] TK01[动力工程及工程热物理]