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1.
Chinese Journal of Biotechnology ; (12): 285-298, 2013.
Article in Chinese | WPRIM | ID: wpr-233245

ABSTRACT

Development of aviation biofuels has attracted great attention worldwide because that the shortage of fossil resources has become more and more serious. In the present paper, the development background, synthesis technologies, current application status and existing problems of aviation biofuels were reviewed. Several preparation routes of aviation biofuels were described, including Fischer-Tropsch process, catalytic hydrogenation and catalytic cracking of bio-oil. The status of flight tests and commercial operation were also introduced. Finally the problems for development and application of aviation biofuels were stated, and some accommodation were proposed.


Subject(s)
Aviation , Methods , Biofuels , Chemistry Techniques, Synthetic , Methods
2.
Chinese Journal of Biotechnology ; (12): 384-392, 2011.
Article in Chinese | WPRIM | ID: wpr-351522

ABSTRACT

During the bioconversion of lignocellulose to ethanol, the biomass always undergoes pretreatment in order to increase the enzymatic digestibility of cellulose. In present work, we conducted the pretreatment of sugarcane bagasse with aqueous acetic acid for delignification and alkali for deacetylation respectively (Acetoline process) to increase cellulose accessibility for enzymatic hydrolysis. The effects of several factors on the pretreatment effectiveness were investigated. The enzymatic digestibility of pretreated bagasse was further studied. The enzymatic glycan conversion of pretreated solid reached about 80% when it was digested under 7.5% solid consistency with cellulase of 15 FPU/g solid and beta-glucosidase of 10 CBU/g solid for 48 h. Compared with dilute acid pretreatment, Acetoline pretreatment could obtain higher enzymatic glycan conversion. The experimental results indicate that Acetoline is an effective pretreatment method to increase the enzymatic digestibility of sugarcane bagasse.


Subject(s)
Acetic Acid , Chemistry , Biotechnology , Methods , Cellulase , Metabolism , Cellulose , Chemistry , Metabolism , Energy-Generating Resources , Ethanol , Metabolism , Hydrolysis , Lignin , Chemistry , Metabolism , Saccharum
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