biomass species to species. It is very clear that biomass consists of different
components, and understanding the influence of the components during the gasification process is quite a complex task. Another complex issue in utilising this
technology in the treatment of biomass from MSW is the higher water content. In
this section, VERENA pilot reactor, a down flow reactor depicted in Fig. 12, is
reviewed to explained the supercritical water gasification of biomass from the MSW.
The VERENA pilot reactor depicted in Fig. 12 has a total throughput of 100 kg/h
(max. 20% dry biomass) and is designed to operate at a pressure of 35 MPa at a
maximum temperature of 700
C. The plant is operated usually at a flow rate of
100 kg/h at a maximal reaction temperature of 660
C at a pressure of 28 MPa.
4.3.1 Feeds System
The biomass contained in the MSW constitutes different types of organics in both
wet and dry forms. As highlighted, biomass contains cellulose, lignin and
Fig. 11 Lignocellulose structure and constituents (With Permission from: [41])
Supercritical Water Gasification (SCWG) Technology for Municipal Solid Waste. . .
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