Hydrogen-Natural Gas mixture compression in case of transporting through high-pressure gas pipelines

Abstract

When dealing with search for ideal energy production solutions, one of the direction may be the use of hydrogen based on excess electricity. Gaseous state and the existing gas network can be used to deliver it to customers. Quantity of hydrogen in the natural gas system would be different depending on its production, hence it should be sent as an additional component sent by pipeline next to natural gas. Due to the difference in its physicochemical parameters with respect to the characteristics of natural gas, the work of gas compressors at different hydrogen concentrations will be different. An additional aspect taken into account when considering the effect of hydrogen on the performance of the compressor is the change of the main parameters which characterizes the flow. It may turn out that they will also positively influence the work of compression needed in the same compressor stations. Such changes may in consequence lead to additional savings, some of which are described in this paper.