Bio-diesel is the fuel for diesel engine which is produce from vegetables and is a renewable transportation fuel. The developments of Bio-diesel are the subjects collecting world-wideattention.
The HiBD of the present project is a new bio-fuel which has been developed by Prof. K. Fujimoto and Dr. H. Tani whose main components are aliphatic hydrocarbons. The production of HiBD requires only fat and proceeded with a simple process.
HiBD exhibits an excellent low temperature fluidity which enables its use in the cold latitude. When the reactions of fats to HiBD are conducted thoroughly, the product contains little harmful by-products such as free fat acid.
It is anti oxidation performance and is excellent because of its chemical structure. The boiling range of HiBD is similar to the conventional diesel fuel and its emission level is even lower than that of the conventional diesel fuel.
HiBD is expected as the second generation diesel fuel which fits the next generation diesel engine (common rail type).
HiBD has registered for the trade mark for Kaoru Fujimoto.
About This Project
The present bio-diesel has been produced by two methods which are called "FAME" process and "BHD" process. FAME is produced by ester-exchange of tri-glyceride with methanol to methyl ester. Although the FAME process has advantage that it can be operated under mild conditions and gives high produce yield, it requires the sub-raw material (methanol) and generates by-product (glycerine). Also, the product (FAME) is rather hard to use for the modern diesel engine. On the other hand, BHD gives straight chain paraffins but the process requires high pressure reaction system and fairly large amount of hydrogen gas, which may lead to the high process cost.
The present project aims at the establishment of a new process of the direct conversion process of fats to diesel fuel where no sub-raw materials are used and gives little by-product. The present process which utilize the solid catalyst and gives the product composed of high concentration of hydrocarbons and little glycerine which has been evaluated as excellent process from the stand point of life cycle assessment (LCA). We call this product as "HiBD" (High quality Bio Diesel) whose trade mark has been established in Japan.
Since HiBD process is a simple process which requires no sub-raw material, it is assumed to be cost– and quality-competitive even with a small scale plant. The process is expected to be operated in Thailand and other South East Asian countries as well as in Japan.