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Coalbed Methane Synthesis Lab Report

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Enhancement of methane production from barley waste
Two different approaches were attempted to try and enhance methane production from an industrial waste composed of 100% barley, which results from production of instant coffee substitutes. In previous work, this waste was co-digested with an excess of activated sludge produced in the wastewater treatment plant located in same industrial unit, resulting in a very poor methane yield (25 LCH4(STP)/kgVSinitial), and low reductions in total solids (31%) and in volatile solids (40%).
When the barley waste (BW) was subjected to alkaline hydrolysis pre-treatment before co-digestion with activated sludge, the methane production increased to 222 LCH4(STP)/kgVSinitial and the total and volatile solids reductions increased to 67% and 84%, respectively. …show more content…

Lab research has shown that essentially all methane sorbed on coal can be stripped by nitrogen without necessarily reducing the total system pressure. That is, methane desorption from coal is achieved by reducing the partial pressure of methane rather than merely the total pressure of methane rather than merely the total pressure. Lab and modeling results are presented to pressure. Lab and modeling results are presented to demonstrate how nitrogen injection in coal can accelerate methane production rates and enhance reserves. Scoping process economics of enhanced coalbed methane production also appear to be attractive.
Introduction
Coalbed methane gas-in-place is estimated to be 400 TCF, of which about 95 TCF is considered to be economically recoverable with current technology'. This represents a significant resource since the total U.S. proved gas reserves are estimated to be 187 TCF. Efforts to commercially recover coalbed methane have begun with the drilling of over 2000 wells, primarily in the San Juan and Warrior Basins.
METHANE IS ADSORBED TO COAL

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