2014年12月市场联盟研究(Allied Market Research)发布的报告称第二代生物燃料的生产比常规矿物燃料能效更高,且对环境更友好。北美洲和欧洲各国政府提供的有利的法规、政策、投资或资金促进了生物燃料的研发和商业化,同时也推动了生物燃料销售的增长。2014—2020年间,全球第二代生物燃料市场预计复合年均增长率为49.4%,到2020年预计总市值达到239亿美元。生物燃料包括纤维素乙醇、生物柴油、生物丁醇和生物二甲醚等。目前多数第二代生物燃料,如纤维素乙醇、藻类 The December 2014 report from Allied Market Research reports that second-generation biofuels are more energy efficient and environmentally friendly than conventional fossil fuels. Favorable regulations, policies, investments or funds provided by governments in North America and Europe have boosted the development and commercialization of biofuels and have also boosted sales of biofuels. Between 2014 and 2020, the global second-generation biofuels market is projected to grow at a CAGR of 49.4% on average, with a projected total market cap of US $ 23.9 billion by 2020. Biofuels include cellulosic ethanol, biodiesel, biobutanol and bio-dimethyl ether. At present, most second-generation biofuels, such as cellulosic ethanol and algae,