The role of wood residues in the transition to sustainable bioenergy


Book Description

This report provides an overview of the potential use of wood residues as feedstock for bioenergy production as part of the transition towards a sustainable and circular forest bioeconomy. While data and examples are abundant from developed countries, a specific focus will be put on the role and potential of wood residue-based energy in developing countries. The study is structured around the following four main objectives, each corresponding to a chapter:- define key terms and concepts related to wood residues and bioenergy value chains (Chapter 2);- characterize the status and trends in renewable energy, modern bioenergy and the forest-based bioeconomy and evaluate the theoretical potential of wood residues for energy (Chapter 3);- determine general success factors, common lessons learned and constraints on the utilization of wood residues for energy (Chapter 4); and- formulate recommendations (Chapter 5).The overall aim is to inform new policies and programmes through the identification of optimal conditions whereby the use of wood residues for energy can offer a competitive alternative to other fuels in developing countries and contribute towards reaching the UN SDGs.






















A Survey of Sawmill Residues and Lumber as Raw Materials for Wood-using Industries in West Virginia


Book Description

The availability and cost of sawmill residues and lumber as raw material in West Virginia are generally favorable for expansion of wood-using industries in the State. Raw-material requirements indicate that there are several opportunities for new flooring and furniture plants that would use lumber produced within the State and for new particle-board and wood-pulp mills that would utilize sawmill residues. Substantial volumes of lumber from a number of commercially important hardwood species are now being produced in West Virginia. This lumber, a high proportion of which is now being shipped out of the State, could provide raw material for new flooring or furniture plants in West Virginia. Lumber quality and availability are favorable for new plants. Large volumes of sawmill residues, which could be used in the production of wood pulp or particle board, are produced within the State. Volumes are sufficient to supply new particle-board plants with all necessary raw materials and to supply new wood-pulp mills with an important part of their raw-material requirements. Sixty percent of this material was not being sold or utilized by the sawmills. This material presumably would be available for new plants. Large volumes of sawmill residues, which could be used in the production of wood pulp or particle board, are produced within the State. Volumes are sufficient to supply new particle-board plants with all necessary raw materials and to supply new wood-pulp mills with an important part of their raw-material requirements. Sixty percent of this material was not being sold or utilized by the sawmills. This material presumably would be available for new plants.




Wood a Agricultural Residues


Book Description

Wood and Agricultural Residues Research on Use for Feed, Fuels, and Chemicals covers the proceedings of the 1982 "Feed, Fuels, and Chemicals from Wood and Agricultural Residues symposium, held in Kansas City and sponsored by Cellulose, Paper, and Textile Division of the American Chemical Society. Organized into seven parts encompassing 31 chapters, the book discusses the plant cell wall; the cellulose, hemicelluloses, and lignin; the lignocellulosics for ruminants; the biological and thermochemical conversion; and the approached for utilization. The introductory part describes the anatomy, permeability, ultrastructure, and digestion of plant cell wall. The following section examines the structure, characteristics, derivatives, recycle and recovery through solvent systems, and utilization for enzyme and protein production of cellulose and hemicelluloses. This section also discusses the synthesis, structure, properties, and analysis of hydroxypropyl lignin derivatives. The third section characterizes the fibrous fractions of forages and presents traditional methods for qualitative and quantitative analyses of lignocellulosics. This text includes discussions on methods for improving utilization of unconventional feed sources by ruminants; the digestion impeding factors; and the effect of chemical, physical, and biological treatments in upgrading the digestibility and nutritive value of crop residues. The subsequent sections describe the biological, chemical, physical, and thermochemical conversion of wood fibers. Such methods include fermentation, acid and steam hydrolysis, saccharification, hydrogenolysis, and pyrolysis. The concluding section covers mechanical treatments to improve lignocelluloses properties, such as steam explosion and solvent systems. This book is an ideal source of information for botanists and feed scientists and researchers.




Potential Use of Wood Residues for Energy in Georgia


Book Description

Extract: The objectives of this study were to determine (1) the potential supply of wood residues for fuel, (2) their prices, (3) present uses, (4) transportation costs, and (5) the market organization in each of the five forest survey units of Georgia.