The proposed plant is modelled and simulated using the ECLIPSE process simulation package,
including the pyrolysis process, the updraft gasifier, the ORC process and the integration of the whole
system. The ECLIPSE simulation shows that when the PL feedstock is set to 1500kg/hour, the yield of
biochar produced is around 415kg per hour. The updraft gasifier generates 2050m3/hour producer gas,
which contains a CV of 4.45MJ/Nm3. If the ORC system is installed, the electricity generated is
405kWhe(Gross). The total available waste heat recovered is 1822kWhth, resulting in a relatively lower
heat to electrical power ratio of 4.5. Carbon dioxide emissions are found to be 2.8kg/kWhe. This level of
CO2 emissions is high, due to its low electrical efficiency. Taking into account of all the heat recovered,
however, CO2 emissions can be decreased to 0.45kg/kWh.
The proposed plant is modelled and simulated using the ECLIPSE process simulation package,including the pyrolysis process, the updraft gasifier, the ORC process and the integration of the wholesystem. The ECLIPSE simulation shows that when the PL feedstock is set to 1500kg/hour, the yield ofbiochar produced is around 415kg per hour. The updraft gasifier generates 2050m3/hour producer gas,which contains a CV of 4.45MJ/Nm3. If the ORC system is installed, the electricity generated is405kWhe(Gross). The total available waste heat recovered is 1822kWhth, resulting in a relatively lowerheat to electrical power ratio of 4.5. Carbon dioxide emissions are found to be 2.8kg/kWhe. This level ofCO2 emissions is high, due to its low electrical efficiency. Taking into account of all the heat recovered,however, CO2 emissions can be decreased to 0.45kg/kWh.
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