【Ten Years of Great Progress in Chemical Engineering Technology】098-2023: China’s First High-Pressure Pure Hydrogen Pipeline Test

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Ten years of rapid development in chemical engineering technology; praise for the prosperous and strong China. This is just a starting point to encourage more people to get involved, making things even more lively. HaiChuan becomes even better with your participation – we welcome everyone to join in the forum discussions. Everyone should focus on safety and know how to handle emergencies. ********************************************* On February 25th, 2023, China conducted its first test of high-pressure pure hydrogen pipelines, and this test was successful at the Pipeline Breakage Control Test Site of **Pipeline Network Group. This achievement provides technical support for China’s future efforts to achieve large-scale, low-cost long-distance transportation of pure hydrogen. At the Pipeline Breakage Control Test Facility of Hami **Pipeline Network Group, the staff carried out hydrogen filling tests on pipelines at 6.3 megapascals and burst testing on pipelines at 9.45 megapascals; all results met the expected standards. **Qiu Shujuan, a technical expert at Western Pipeline Company of the Pipeline Network Group: We conducted a one-month trial that included two phases – hydrogen filling tests for the pipelines and hydrogen explosion tests – in order to verify the hydrogen compatibility of the pipeline equipment, its barrier properties, as well as the sealing quality at the connections between the equipment. This test is the first high-pressure on-line test conducted in China on hydrogen transport non-metallic pipelines, and it is also the first high-pressure pure hydrogen blasting test carried out in the country on non-metallic pipelines. The **Pipeline Network Group Pipeline Breakage Control Test Facility** on which this experiment is based is the third such facility in the world, following those in the UK and Italy.