| 1. | Besides policy factors , five methods of cost - cutting of biodiesel are reviewed , including new raw material with higher oil content , shorter regeneration cycle , which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e . g . supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride , 1 , 3 - propanediol , pyruvic alcohol etc . ) and moderate scale of production
摘要综述了除政策因素外，降低生物柴油生产成本的5种方法：选择含油率高、再生周期短、适应贫瘠土地及不同气候条件的新型植物原料；研究新型固体催化剂；引入新工艺（超临界法和超声波法） ；使用比较简便的方法将废弃的甘油转化为高附加值的产品（环氧氯丙烷、 1 , 3 -丙二醇、丙酮醇等）以及适度生产规模等。 |
