Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Alpha cellulose and Lignin Determined by Dynamic Thermogravimetry written by Walter K. Tang and published by . This book was released on 1967 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic thermogravimetric analyses were conducted under vacuum on pyrolysis of wood, of alpha-cellulose, and of lignin, untreated and treated with 2 percent by weight of five inorganic salts. Data for weight loss and for rate of weight loss were obtained to indicate the principal decomposition ranges for the wood and the wood components, the effect of the chemicals on volatilization at various temperature ranges, and the kinetics of the decomposition reactions. The difference method of Freeman and Carroll was first examined as a means for obtaining the order of the reactions, the frequency factors, and the activation energies. However, because of amplified errors in this method, a pseudo first-order Arrhenius plot was finally used for determining frequency factors and activation energies. (Author).
Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Alpha cellulose and Lignin Determined by Dynamic Thermogravimetry written by Walter K. Tang and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic thermogravimetric analyses were conducted under vacuum on pyrolysis of wood, of alpha-cellulose, and of lignin, untreated and treated with 2 percent by weight of five inorganic salts. Data for weight loss and for rate of weight loss were obtained to indicate the principal decomposition ranges for the wood and the wood components, the effect of the chemicals on volatilization at various temperature ranges, and the kinetics of the decomposition reactions. The difference method of Freeman and Carroll was first examined as a means for obtaining the order of the reactions, the frequency factors, and the activation energies. However, because of amplified errors in this method, a pseudo first-order Arrhenius plot was finally used for determining frequency factors and activation energies. (Author).
Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Alpha cellulose and Lignin Determined by Dynamic Thermogravimetry written by and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Inorganic Salts on the Pyrolysis Ignition and Combustion of Wood Cellulose and Lignin written by Walter Kwei-Yuan Tang and published by . This book was released on 1964 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Cellulose and Lignin Determined by Differential Thermal Analysis written by Walter K. Tang and published by . This book was released on 1968 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Differential thermal analysis was conducted in both helium and oxygen atmospheres on the thermal decomposition of wood, cellulose, and lignin, untreated and treated with 2 and 8 percent by weight of eight inorganic salts and an acid. Thermograms were obtained for the temperature ranges for endothermic and exothermic reactions, for the temperatures of maximum heat absorption or release, and for the heat intensities. These data combined with results of a previous work utilizing thermogravimetric analysis provide additional information on the characteristics of thermal decomposition. In particular, these data show that the net heat of pyrolysis for untreated and treated cellulose is endothermic. The heat of pyrolysis for both wood and lignin is initially endothermic and later becomes exothermic. However, the net exothermic heat of pyrolysis for wood is only about 2 percent of the heat of combustion. The heat of combustion from wood is released by flaming of the volatiles with a maximum release at about 310C and a glowing of the solids with a second maximum release at about 440C. The influence of the several types of effective and ineffective fire-retardant salts on the initial temperature of volatilization, rate of decomposition and heat release, transition temperatures of volatilization and heat release, and maximum heat intensities are also related by this work to theories that have been developed concerning the retarding of flaming and glowing reactions of wood and its components. (Author).
Download or read book U S D A Forest Service Research Paper FPL written by and published by . This book was released on 1968 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Forest Service Research Paper FPL written by Forest Products Laboratory (U.S.) and published by . This book was released on 1966 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Alpha cellulose and Lignin written by Walter K. Tang and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Forest Service Research Paper FPL written by and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Regimes and Ecosystem Properties written by and published by . This book was released on 1981 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Inorganic Salts on Pyrolysis of Wood Cellulose and Lignin Determined by Differential Thermal Analysis written by and published by . This book was released on 1968 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service Research Paper INT written by and published by . This book was released on 1971 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Heat on the Longitudinal Creep of Dry Douglas fir written by Erwin L. Schaffer and published by . This book was released on 1982 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pyrolysis of Polymers written by Carlos J. Hilado and published by CRC Press. This book was released on 1976-07 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
