A system and method is disclosed for treating a mixture of hydrocarbon and carbon dioxide gas produced from a hydrocarbon reservoir. The system includes a gas power turbine adapted to burn the produced gas mixture of hydrocarbon and carbon dioxide gas with oxygen as an oxidizing agent and a capture system to collect the exhaust gas from the power turbine. An inlet compressor receives exhaust gas from the capture system and compresses the exhaust gas for injection of the exhaust gas into a hydrocarbon reservoir and for recycle to the power turbine. The system may further include a membrane system that preferentially removes carbon dioxide and hydrogen sulfide from the produced gas stream before said stream is used as fuel gas in the power turbine. The carbon dioxide and hydrogen sulfide removed by the membrane system is combined with the exhaust gas, and the combined gas is injected into a hydrocarbon reservoir.

System and method for processing a mixture of hydrocarbon and CO2 gas produced from a hydrocarbon reservoir

Preliminary assessment of sCO2 cycles for power generation in CSP solar tower plants

Electrical energy storage has been recognised as an underpinning technology to meet the challenges in the power network arisen from the rapidly increasing penetration of renewable energy. Compressed Air Energy Storage (CAES) has gained substantial worldwide attention in recent years due to its low-cost and high-reliability in the large-scale energy storage systems. Air expander is one of the key components in a CAES system because its operational characteristics determine the power conversion efficiency and the power generation during the discharge period. The performance of the expander contributes heavily to the round trip efficiency of the whole system. This paper presents an up-to-date review of the CAES technology, and methods for modelling and selecting expanders for CAES systems. The focuses of selecting the appropriate expansion machines are identifying and analysing the characteristics of both CAES systems and expansion machines, and finding the matched expanders for the CAES system formulation (i.e. diabatic, adiabatic and isothermal CAES) and operational conditions (i.e. air pressure, temperature and flow rate). After all, recommendations and guidelines in selecting appropriate expanders and expansion stage numbers are formulated and discussed; this laid a step stone for choosing suitable expansion machines to achieve an overall CAES system high efficiency.

Optimal selection of air expansion machine in compressed air energy storage : a review

Potential advantages of coupling supercritical CO2 Brayton cycle to water cooled small and medium size reactor

A numerical investigation of the sCO2 recompression cycle off-design behaviour, coupled to a sodium cooled fast reactor, for seasonal variation in the heat sink temperature

A mean line loss system is described, capable of predicting the design point efficiencies of current axial turbines of gas turbine engines. This loss system is a development of the Ainley/Mathieson technique of 1951. The prediction method is tested against the ''Smith's Chart'' and against the known efficiencies of 33 turbines of recent design. It is shown to be able to predict the efficiencies of a wide range of axial turbines of conventional stage loadings to within 1 1/2 percent. 13 refs.

A Mean Line Prediction Method for Axial Flow Turbine Efficiency

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A Mean Line Prediction Method for Axial Flow Turbine Efficiency