Abstract
An economic evaluation for the feasibility study on energy production by supercritical water gasification (SCWG) with
layer poultry manure suspended activated carbon catalyst was conducted. Two systems, basic and improvement, were
designed. The basic system is considered only energy product usage by the product gas is converted to electricity. The
improvement system is involved by-product utilization processes of SCWG effluent, resulting recycle of activated carbon
catalyst and recover of calcium phosphate, ammonium sulfate and potassium sulfate. The material and economic balance of
the basic and improvement system was estimated. Under the conditions assumed here, economic balance of the basic system
is negative even large scale. In case of the improvement system, profitable line was 35.5 t/d scale of layer poultry manure
feed.
