Author: William Sydney WisePublisher:
ISBN:
Category : Science
Languages : en
Pages : 66
Book Description
Solvent Treatment of Coal
Author: William Sydney WisePublisher:
ISBN:
Category : Science
Languages : en
Pages : 66
Book Description
Solvent Treatment of Coal
Author: Wise WS.Solvent Treatment of Coal for Improved Liquefaction
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Increased liquefaction yield is obtained by pretreating a slurry of solid carbonaceous material and a liquid hydrocarbonaceous solvent at a temperature above 200.degree. C. but below 350.degree. C. for a period of 10 minutes to four hours prior to exposure to liquefaction temperatures.
Solvent Treatment of Coals
Author: Zeynep Isik CepniBeneficiation of Bituminous Coals Using Solvent Treatment at Mild Conditions
Author: Kalyanaraman RenganathanPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 176
Book Description
Solvent Extract and the Plastic Properties of Coal (Classic Reprint)
Author: Emile Desire PierronPublisher: Forgotten Books
ISBN: 9780366366484
Category : Science
Languages : en
Pages : 20
Book Description
Excerpt from Solvent Extract and the Plastic Properties of Coal Because the earlier work had covered studies on only three samples of coal, we decided to extend it to cover more coals of various ranks, volatile matter con tents, and maximum fluidity levels. This report presents the results of these extended studies. In this work emphasis was placed on the relationship of quan tity of extract to maximum fluidity and on the maximum fluidities of blends made by combining extracts and residues in different proportions Chemical analyses for coals, extracts, and residues are presented, and, in addition, molecular weight data are given for the pyridine extracts and fractions thereof derived by further solvent treatment. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Alcohols as Hydrogen-donor Solvents for Treatment of Coal
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A method for the hydroconversion of coal by solvent treatment at elevated temperatures and pressure wherein an alcohol having an .alpha.-hydrogen atom, particularly a secondary alcohol such as isopropanol, is utilized as a hydrogen donor solvent. In a particular embodiment, a base capable of providing a catalytically effective amount of the corresponding alcoholate anion under the solvent treatment conditions is added to catalyze the alcohol-coal reaction.
Removal of Sulfur from Coal by Treatment with Hydrogen
Author: Colorado School of Mines. Chemical and Petroleum Refining Engineering DepartmentPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 116
Book Description
Solvent Refined Coal-1 Demonstration Project
Author: Understanding Wyoming Coal Partition During Solvent Extraction and Their Non-thermal Applications
Author: Ian HammontreePublisher:
ISBN:
Category : Coal
Languages : en
Pages : 59
Book Description
The use of coal as a fuel source has been decreasing rapidly due to economic and environmental concerns. As a result, it is becoming increasingly important to find alternative uses for this abundant resource for states and countries that have economies that rely heavily on coal. Previous work from our group has shown that treatment of coal with various solvents can convert Wyoming coal into carbon fiber mats for non-thermal applications, such as electrodes for energy storage devices (supercapacitors or batteries). However, there still lacks systematic study on the fate of different streams for one of the most cost-effective, environmentally friendly, and biodegradable solvents, formed from choline and l-arginate in water, referred to as [Ch][ARG]. In this work, Wyoming coal from the Powder River Basin was treated with [Ch][ARG], with the coal fragments insoluble in the solvent being referred to as char. The [Ch][ARG] char was carefully characterized and used as precursors for electrospinning. FT-IR and TGA-MS results of the char showed the presence of the [Ch][ARG] used for treatment despite thorough washing and of oxygen containing functional groups. N2 and CO2 physisorption results showed the porosity of the char is located mainly in the sub nanometer region (microporous), with a very low percentage of mesopores (> 2nm). The coal derived carbon fiber mats (CFM) were characterized using FT-IR and scanning electron microscope (SEM) and tested for their potential applications in semipermeable membranes.