Nomograph for Absorption Factor Equation

Abstract

recovered was based on the following assumptions: 10% concentration of lignin in extract; 90% of methanol-soluble lignin dissolved in methanol extract, 10% retained by lignocellulose; use of lignocellulose 256, containing 33.3% methanol-soluble lignin; methanol recovered at 98.2 mole % concentration; spent water containing less than 0.01% methanol; and steam supply at 5 pounds per square inch gage.Lignin extract is concentrated to 25% lignin content by evaporation of methanol. The concentrate is poured into three times its own weight of water, yielding a 25% methanol filtrate (15.8 mole %). With feed preheated by spent water to 156°F. and referring to the McCabe-Thiele method (2): q = 1.043

Transportation and Storage

“…A specific mechanism has been advanced by Mapstone [19], who postulated oxidation of FeS to pyrophoric ferrous sulfide as well as to Fe 2 + and Fe 3 + sulfates. These reactions would ultimately release some 840 kJ/mole and create regions near coal-to-pyrite interfaces at which coal oxidation could very easily become self-accelerating.…”