The Fractionation of Loblolly Pine Woodchips Into Pulp For Making Paper Products

Kiran Kadam, PhD

PureVision Technology, Inc.

关键词: Biomass;    Pulp &;    Paper, Biomass Fractionation;    Delignification;    Pines;   

DOI  :  10.2172/896388
RP-ID  :  DOE GO15154
RP-ID  :  FG36-05GO15154
RP-ID  :  896388

美国|英语

来源: UNT Digital Library

【 摘 要 】

The overall goal of the project was to test the PureVision biomass fractionation technology for making pulp from loblolly pine. A specific goal was to produce a pulp product that is comparable to pulp produced from the kraft process, while reducing the environmental effects of the kraft process, known to be a highly pollutant process. The overall goal of the project was met by using the biomass fractionation concept for making pulp product. This proof-of-concept study, done with Southern pine pinchips as feedstock, evaluated NaOH concentration and residence time as variables in single-stage cocurrent pulping process. It can be concluded that 1% NaOH is adequate for effective delignification using the PureVision process; this is about ⅓ of that used in the kraft process. Also, the PureVision process does not use sulfur-based chemicals such as N2S and hence, is environmentally more benign.