CATALYTIC CONVERSION OF CELLULOSE TO FUELS AND CHEMICALS USING BORONIC ACIDS
申请人:Raines Ronald
公开号:US20130178617A1
公开(公告)日:2013-07-11
Methods and catalyst compositions for formation of furans from carbohydrates. A carbohydrate substrate is heating in the presence of a 2-substituted phenylboronic acid (or salt or hydrate thereof) and optionally a magnesium or calcium halide salt. The reaction is carried out in a polar aprotic solvent other than an ionic liquid, an ionic liquid or a mixture thereof. Additional of a selected amount of water to the reaction can enhance the yield of furans.
[EN] BIOREFINING COMPOUNDS AND ORGANOCATALYTIC UPGRADING METHODS<br/>[FR] BIORAFFINAGE DE COMPOSÉS ET PROCÉDÉS DE VALORISATION PAR ORGANOCATALYSE
申请人:CHEN EUGENE
公开号:WO2014008301A1
公开(公告)日:2014-01-09
The invention provides new methods for the direct umpolung self-condensation of 5-hydroxymethylfurfural (HMF) by organocatalysis, thereby upgrading the readily available substrate into 5,5'-di(hydroxymethyl) furoin (DHMF). While many efficient catalyst systems have been developed for conversion of plant biomass resources into HMF, the invention now provides methods to convert such nonfood biomass directly into DHMF by a simple process as described herein. The invention also provides highly effective new methods for upgrading other biomass furaldehydes and related compound to liquid fuels. The methods include the organocatalytic self-condensation (umpolung) of biomass furaldehydes into (C8-C12)furoin intermediates, followed by hydrogenation, etherification or esterification into oxygenated biodiesel, or hydrodeoxygenation by metal-acid tandem catalysis into premium hydrocarbon fuels.
Simple and recyclable ionic liquid based system for the selective decomposition of formic acid to hydrogen and carbon dioxide
作者:M. E. M. Berger、D. Assenbaum、N. Taccardi、E. Spiecker、P. Wasserscheid
DOI:10.1039/c0gc00829j
日期:——
development of systems for its storage and delivery. Formic acid has been proposed as valuable hydrogen carrier compound, due to its relatively high hydrogen content (53 g L−1), the latter being easily and cleanly released in catalytic reactions under mild conditions (HCOOH → H2 + CO2). Ionic liquids are interesting solvents for homogeneous catalyzed formic acid decomposition systems as their extremely
申请人:Daegu Gyeongbuk Institute of Science and Technology 재단법인대구경북과학기술원(220050290674) BRN ▼504-82-10122
公开号:KR20160096254A
公开(公告)日:2016-08-16
본 발명은 셀룰로오스 분해율이 낮은 이온성 액체에 관한 것으로, 본 발명에 따른 이온성 액체는 상용성 이온성 액체와 비교하여 셀룰로오스의 용해도가 유사하거나 더욱 우수할 뿐만 아니라, 용해시 셀룰로오스 분해율이 현저히 낮으므로 셀룰로오스 고유에 가까운 기계적 물성을 유지하는데 유용한 효과가 있다.
This invention relates to an ionic liquid with a low cellulose degradation rate. According to the invention, the ionic liquid has a solubility of cellulose that is similar or even superior to that of commercial ionic liquids, and the cellulose degradation rate during dissolution is significantly low. This has the beneficial effect of maintaining mechanical properties close to the original cellulose.
A mechanistic insight into the organocatalytic properties of imidazolium-based ionic liquids and a positive co-solvent effect on cellulose modification reactions in an ionic liquid
Mechanistic insights into organocatalytic properties of imidazolium-based ionic liquids led to improvements of cellulose modification reactions in ionic liquids.