Climate change and rising oil prices have urged the needs for researching alternative energy. Among possible alternative resources, lignocellulosic biomass is one of the promising raw materials, which has been intensively studied recently. （更多…）
Biodiesel is an environment-friendly renewable energy. The critical issues on biodiesel studies are the development of recyclable and reusable solid catalyst and the use of non-edible oil such as Jatropha oil as feedstock. Fang’s team from XTBG uses coprecipitation-calcination-reduction method to prepare solid CaFe2O4-Ca2Fe2O5-Fe3O4-Fe catalyst with certain magnetism. This catalyst maintains a relative high activity on catalytic transesterification, and concurrently solves the separation of solid catalyst from products, as well as the disposal of waste acidic liquid and unwanted emulsification in homogeneous catalysis. The conversion of soybean and Jatropha oils to biodiesel over this catalyst reach 83.5% and 78.2%, respectively. The main active components of catalyst are calcium ferrites on the catalyst surface. The magnetic catalyst could be recycled and reused for three times, which shows a potential application for the green production of biodiesel.
Related paper titled “Biodiesel Production from Soybean and Jatropha Oils by Magnetic CaFe2O4-Ca2Fe2O5-Based Catalyst” was published on the journal “Energy” (Energy, 2014, 68: 584-591, IF =3.65).
生物柴油是一种环境友好型可再生能源。开发可回收、再利用的固体催化剂，利用小桐子油为代表的非食用油为原料是生物柴油研究的关键。 （更多…）
半纤维素的损失以及不能有效地破坏纤维素的结晶结构，是木质纤维素水解液中糖得率低以及水解成本高的主要原因。稀酸水解可以有效地将半纤维素水解成糖，而这些糖可以有效地被细菌利用生成2,3-丁二醇(36.1%)。 （更多…）
Loss of hemicellulose and inability to effectively decrystallize cellulose, result in low yield and high cost of sugars derived from biomass. Dilute sulfuric acid pretreatment could easily remove most of hemicellulose as sugars. （更多…）