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Increasing the COP of a refrigeration cycle in natural gas liquefaction process using refrigerant blends of Propane-NH3 Propane-SO2 and Propane-CO2

机译:使用丙烷-NH3丙烷-O2和丙烷-CO2的制冷剂共混物增加天然气液化过程中的制冷循环COP

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摘要

This paper investigates the feasibility of using inexpensive techniques to enhance the coefficient of performance ( ) of the refrigeration cycle used in the liquefaction of natural gas. The effect of mixing the propane refrigerant with ammonia, sulfur dioxide and carbon dioxide on the performance and the work of the compressor is studied. It is shown that the mixture of ammonia-propane and sulfur dioxide-propane enhances the overall by 7% and 9%, respectively. The addition of ammonia and sulfur dioxide to the propane refrigerant reduces the overall compressor work by reducing the overall mass flowrate required to absorb a constant heat from the natural gas. On the other hand, the mixture of carbon dioxide-propane degrades the overall by 70%. The addition of carbon dioxide increases the overall mass flowrate required to absorb a constant heat from the natural gas. Interestingly, the proposed method requires small capital and running costs.
机译:本文研究了使用廉价技术来增强在天然气液化中使用的制冷循环系数的可行性。研究了将丙烷制冷剂与氨,二氧化硫和二氧化碳混合的效果和压缩机的工作。结果表明,氨 - 丙烷和二氧化硫 - 丙烷的混合物分别增强了7%和9%的总体。向丙烷制冷剂加入氨和二氧化硫通过减少从天然气吸收恒定热量所需的总质量流量来减少整个压缩机的工作。另一方面,二氧化碳 - 丙烷的混合物将总体缩短70%。添加二氧化碳增加了吸收来自天然气的恒定热量所需的总质量流量。有趣的是,所提出的方法需要小的资金和运行成本。

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