fluting paper which produced from nssc pulp is the most important lignocellulosic sources for production of packaging papers. the usage of paper is prefered to other sources for packaging purposes considering some properties such as cheapness, being enviromentally friendly and recyclability. in this research, production of nssc pulp from populus deltoides clone 69-55 for packaging purposes and ...

Many researchers have performed various studies to discover the reasons for the impressive catalytic effect of anthraquinone. Discussions and experiments have been conducted on the chemistry, kinetics, and physical properties of anthraquinone (AQ). However, most of the previous research has neglected the role of mass transfer in AQ pulping. This paper describes our analysis and interpretation o...

Steam explosion has been proposed for a wide range of lignocellulosic applications, including fractionation of biomass, pre-treatment of biomass for ethanol production, or as an alternative to conventional mechanical pulping. Nevertheless, a steam explosion process could also be used as pretreatment before chemical pulping, expecting a reduction in cooking time due to the open structure of the ...

Oklahoma Cooperative Extension Service • Division of Agricultural Sciences and Natural Resources Paper is a thin sheet usually manufactured from cellulose pulp derived from wood and other lignocellulosic materials such as cotton, rice or wheat straw for writing, printing and packaging purposes. Some of the important production processes and properties of different kind of papers will be reviewe...

The chemical industry is being forced to evaluate new strategies for more effective utilization of renewable feedstocks to diminish the use of fossil resources. In this literature review, the integration of both acidic and alkaline pretreatment phases of hardwood and softwood chips with chemical pulping is discussed. Depending on the pretreatment conditions, high-volume sulfur-free fractions wi...

Hybrid poplar genetically engineered to possess chemically labile ester linkages in its lignin backbone (zip-lignin hybrid poplar) was examined to determine if the strategic lignin modifications would enhance chemical pulping efficiencies. Kraft pulping of zip-lignin and wild-type hybrid poplar was performed in lab-scale reactors under conditions of varying severity by altering time, temperatur...

Wheat straw was subjected to three different processes prior to saccharification, namely alkaline pulping, natural pulping and autohydrolysis, in order to study their effect on the rate of enzymatic hydrolysis. Parameters like medium concentration, temperature and time have been varied in order to optimize each method. Milling the raw material to a length of 4mm beforehand showed the best cost-...