PROCESS CONCEPT OF FOREST BIOREFINERY FOR THE PREHYDROLYSIS KRAFT-BASED DISSOLVING PULP PRODUCTION PROCESS
The forest biorefinery concept applied to the prehydrolysis kraft-basd dissolving pulp production process was explored. We determined the chemical composition of pre-hydrolysate liquor (PHL) from a commercial plant in Eastern Canada. The PHL contains high amounts of both mono- and oligo- sugars (1.50％-1.65％), and xylose/xylan was the predominate sugar in the PHL. Glucose, galactose and mannose were also found in the PHL. Acetic acid released during pre-hydrolysis was about 25％ of the total solids in the PHL. The sum of sugars, acetic acid, lignin and ash contents accounts for 91.4％-95.6％ of the total solid content of the PHL. We made further efforts in recovering the hemicelluloses in the PHL, and the results are also presented.
biorefinery pre-hydrolysis kraft pulping hardwood dissolving pulp xylan/xylose
Abrar Saeed Liu Zehua Pedram Fatehi M.Sarwar Jahan Li Haiming Ni Yonghao
Limerick Pulp and Paper Centre, University of New Brunswick, PO Box 4400, Fredericton, NB, Canada E3B 5A3
国际会议
广州
英文
1348-1352
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）