New catalytic strategies for alpha,omega-diols production from lignocellulosic biomass

作者：He Jiayue; Huang Kefeng; Barnett Kevin J; Krishna Siddarth H; Alonso David M; Brentzel Zachary J; Burt Samuel P; Walker Theodore; Banholzer Williams F; Maravelias Christos T; Hermans Ive; Dumesic James A; Huber George W^*

来源：Faraday Discussions, 2017, 202: 247-267.

DOI：10.1039/c7fd00036g

Catalytic strategies for the synthesis of 1,5-pentanediol (PDO) with 69% yield from hemicellulose and the synthesis of 1,6-hexanediol (HDO) with 28% yield from cellulose are presented. Fractionation of lignocellulosic biomass (white birch wood chips) in gamma-valerolactone (GVL)/H2O generates a pure cellulose solid and a liquid stream containing hemicellulose and lignin, which is further dehydrated to furfural with 85% yield. Furfural is converted to PDO with sequential dehydration, hydration, ring-opening tautomerization, and hydrogenation reactions. Acid-catalyzed cellulose dehydration in tetrahydrofuran (THF)/H2O produces a mixture of levoglucosenone (LGO) and 5-hydroxymethylfurfural (HMF), which are converted with hydrogen to tetrahydrofuran-dimethanol (THFDM). HDO is then obtained from hydrogenolysis of THFDM. Technoeconomic analysis demonstrates that this approach can produce HDO and PDO at a minimum selling price of $4090 per ton.

• 出版日期2017-9-1