The second generation biofuel production technology with more potential, such as pyrolysis of cellulose raw materials, is replacing corn-based ethanol gasoline and other fuel production technologies.
rapid pyrolysis technology. Lurgi Company of Germany cooperated with Karlsruhe Research Center to build a pilot plant for producing biofuel from cellulose. The technical route is as follows: firstly, thin-walled plants such as straw and sawdust are ground and then sent to a reactor, which is quickly heated to 5℃ to be cracked and condensed into slurry; Then the slurry is sent to an oil refinery to be converted into synthesis gas; The synthesis gas is converted into the required fuel by the Fischer-Tropsch process. This fuel can be blended with fossil fuels in any proportion. The plant can convert about 2, tons of dry lignocellulose raw materials every year, with a production capacity of about 134, tons/year. This route is more efficient than methanol synthesis. In 211, the two companies will build gasification plants.
enzyme fermentation technology. Syngenta and other enterprises in Switzerland cooperate to develop the second generation biofuel technology by enzyme fermentation, including developing a series of new enzyme preparations related to cellulose ethanol. These enzymes can convert pretreated cellulose into mixed sugar, which is a key step. There are three breakthroughs in converting cellulose into biofuel: pretreatment (chemical preparation of cellulose), saccharification (converting pretreated cellulose into fermentable sugar by enzymes) and fermentation (developing new microorganisms to ferment sugar into ethanol or other fuels).
aquatic biotechnology. Aquatic algae can be converted into biodiesel, which can be fermented into ethanol by producing carbohydrates. The patented technology owned by French Eco-Solution company can make algae grow faster than natural growth in the reactor. The company thinks that the combination of open pond and photoreactor is the most economical method.