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US 11,834,618 B1Granted
Flexible biomass gasification based multi-objective energy system
AssigneeKing Faisal University
InventorsTawfiq Abdul-Aziz Almughanam, Abdul Khaliq
Life of this patent
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Abstract
A system and method for converting biomass to energy in a multi-objective application that includes generating power, heat, and multiple cooling applications. Waste heat from a HCCI engine is used to implement the multiple cooling applications of an ejector refrigeration cycle and a trans-critical refrigeration cycle, process heating, and turbine power production.
Claims9
A biomass conversion system comprising:
- a syngas gasifier which outputs syngas from an input of biomass and air;
- a cyclone for receiving the output syngas, removing tar and charcoal from the received syngas, and outputting fuel;
- a fuel mixer for receiving the output fuel and an input of compressed air and mixing the output fuel and the input of compressed air to generate a mixed stream;
- a homogenous charge compression ignition engine for receiving the mixed stream, the homogenous charge compression ignition engine generating brake power using the mixed stream and passing homogenous charge compression ignition engine exhaust to a catalytic converter which outputs the homogenous charge compression ignition engine exhaust;
- a turbine which receives the output homogenous charge compression ignition engine exhaust, generates power to drive a turbocharger, and outputs turbine exhaust;
- a regenerator which receives the output turbine exhaust and outputs regenerated turbine exhaust;
- a first compressor which receives power from the turbine and receives an input of ambient air and outputs the compressed air to said regenerator;
- a boiler which receives the output regenerated turbine exhaust, the boiler heating up CO2 and outputting the heated up CO2;
- an expander that receives the heated up CO2 and produces power;
- and
- a second compressor that receives the power from the expander to drive a trans-critical CO2 refrigeration cycle therein to produce cooling in a first cooling temperature range, to produce cooling in a second cooling temperature range, and to output boiler exhaust.
8 more elements
A biomass conversion method, comprising the steps of:
- using a gasifier to convert air and biomass into syngas;
- removing tar and charcoal from the syngas and outputting fuel;
- receiving the output fuel and compressed air and mixing the output fuel and compressed air to generate a mixed stream;
- receiving the mixed stream in a homogenous charge compression ignition engine, which generates brake power and engine exhaust, the engine exhaust being sent to a catalytic converter;
- outputting the engine exhaust from the catalytic converter and inputting the engine exhaust into a turbine;
- generating power from the turbine to drive a turbocharger and outputting turbine exhaust;
- receiving the output turbine exhaust and outputting the turbine exhaust to a regenerator;
- compressing in the first compressor an input of ambient air and outputting compressed air to the regenerator;
- receiving the output turbine exhaust and heating up CO2, and outputting the heated up CO2;
- using an expander to produces power from the heated up CO2;
- and
- using a trans-critical CO2 refrigeration cycle to produce cooling in a first cooling temperature range, to produce cooling in a second cooling temperature range, and to output boiler exhaust.
9 more elements
Dependencies are inferred from the claim text.