The expediency of replacement of throttling devices used for low-pressure gas (fuel, starting, etc.) treatment to meet self-needs of plants treating gas for transportation with expansion units was examined as a part of the PJSC Gazprom’s energy saving policy of improving energy efficiency of subsidiary companies and organization based on application of innovative technologies and energy-generating equipment. The proposed fuel gas treatment technique will able production of additional amount of eco-friendly “green” energy and reduce thereby the operating cost and enhance energy efficiency of the whole plant. The paper presents a comparative analysis of isenthalpic and isentropic gas expansion by various devices. The proposed gas expansion models were constructed using specialized HYSYS (Aspen Tech) software package for modeling chemical engineering system and allow quantitative estimation of the energy of gas pressure drop.

作为 PJSC Gazprom 改进节能政策的一部分，审查了更换用于低压气体（燃料、启动等）处理的节流装置以满足工厂自身需求的权宜之计。基于应用创新技术和发电设备的子公司和组织的能源效率。拟议的燃气处理技术将能够生产额外数量的环保“绿色”能源，从而降低运营成本并提高整个工厂的能源效率。本文对不同装置的等焓和等熵气体膨胀进行了比较分析。