Can hydrogen be transported over long distances?

Quoted from the “Gas Transportation” official account

Are there any good examples in China?

The last edit to this post was made by lovelife1997 on 2019-4-12 at 13:37. 1. In 2014, China’s longest hydrogen pipeline to date was put into operation; it was built at a cost of 190 million yuan. The \"Baling–Changling\" hydrogen pipeline operated by Baling Petrochemical has a total length of 42 kilometers. 2. In 2015, China’s first hydrogen pipeline with large diameter and high pressure was put into operation; it was built at a cost of 154 million yuan. The hydrogen pipeline linking the Huling Chemical Industrial Park in Jiyuan City to the Luoyang Petrochemical Plant in Jili District, Luoyang City, has a total length of 25 kilometers. All are under the China Petrochemical Corporation.

In 2013, the 40,000 tons per year hydrogen pipeline project for Yizheng Chemical Fiber’s BDO facility was implemented, with the pipeline running from Yangzi to Yizheng over a total length of 40.4 kilometers, of which 29.0 kilometers were buried underground and 11.4 kilometers were laid above ground. Diameter 325, design pressure 4.0 MPa, temperature 60 degrees, total investment 165.87 million yuan.

I haven’t seen it; all I’ve seen are filling vehicles in transport. I’ve learned it!

Yizheng Chemical Fibers was actually established earlier than theirs; it’s strange that there’s no trace of any coverage in the media from back then. Is it because of a lack of representation?

1. In 2013, the Yizheng Chemical Fiber hydrogen pipeline project was launched, with an investment of 165.87 million yuan; it is part of the \"Yangtze–Yizheng\" pipeline network, and its total length is 40.4 kilometers. 2. In 2014, China’s longest hydrogen pipeline to date was put into operation; it was built at a cost of 190 million yuan. The \"Baling–Changling\" hydrogen pipeline has a total length of 42 kilometers. 3. In 2015, China’s first hydrogen pipeline with a large diameter and high pressure was put into operation. With an investment of 154 million yuan, the hydrogen pipeline connecting the Huling Chemical Industrial Park in Jiyuan City to the Luoyang Petrochemical Plant in Jili District, Luoyang City, was completed; its total length is 25 kilometers. Although the development, construction, operation, and maintenance of long-distance hydrogen pipelines in China started late, the Chinese are not only capable of building such pipelines but also of maintaining them safely. Everyone is welcome to contribute further to improving this post.

Hydrogen is not only an important industrial raw material but also a vital secondary energy source that supports the clean transition of future energy systems. However, the development of hydrogen energy in our country faces practical challenges such as low technical maturity, a weak industrial foundation, and the need to improve safety. Our country already has a certain industrial foundation for hydrogen energy; the national hydrogen production capacity exceeds 20 million tons per year. However, production relies mainly on fossil fuels, and hydrogen is primarily used as an industrial raw material. The scale of hydrogen production using clean energy sources and its utilization as an energy source is still small. In China, hydrogen produced from fossil fuels such as coal, natural gas, and oil accounts for nearly 70%; hydrogen generated as a by-product of industrial processes makes up about 30%, while hydrogen produced through water electrolysis accounts for less than 1%. The industrialization of hydrogen storage, transportation, and refueling is generally underdeveloped. Compressed hydrogen is relatively mature compared to liquid, solid, and organic liquid hydrogen storage technologies, but it is still some way off from being put into industrial use. Currently, the hydrogen supplied to domestic hydrogen refueling stations is transported using hydrogen gas trailers. Since the weight of hydrogen carried by gaseous hydrogen trailers accounts for only 1%–2% of the total transportation weight, they are suitable for users with relatively short transportation distances, low volumes of hydrogen to be transported, and a daily hydrogen consumption of tons or less. Gas hydrogen pipeline transportation is used for large-scale, long-distance hydrogen transport, and it can effectively reduce transportation costs. At present, the total length of hydrogen pipelines in China is only 300–400 km; the longest hydrogen pipeline is the \"Baling-Changling\" pipeline, with a total length of about 42 km and a pressure of 4 MPa. Gas hydrogen pipeline transportation is more developed abroad compared to in China, with the United States and Europe having built 2400 km and 1500 km of hydrogen pipelines respectively. Hydrogen energy has the advantages of being clean and low-carbon, having a wide range of applications, being easy to store, and enabling interconnection and collaboration. However, it also faces issues such as a weak industrial foundation, high costs, and safety concerns. As of 2019, hydrogen production in China relied primarily on fossil fuels, while hydrogen consumption was concentrated in chemical raw materials. Clean energy-based hydrogen production and its utilization as an energy source are still in the early stages of development, and there is significant potential for growth in the future.