Hydrogen Transportation Pipeline

Hydrogen Transportation Pipeline RTP is a multi-layer pipe with liner, reinforcing layer, and sheath, ensuring safe hydrogen transport.
Introducción

Hydrogen Transportation Pipeline (RTP)

Hydrogen Transportation Pipeline RTP (Reinforced Thermoplastic Pipe) is a multi-layer composite solution with a thermoplastic liner, reinforcing layer, and outer sheath, ensuring safe and cost-effective hydrogen transport.

Today, we are witnessing a growing interest in the use of hydrogen as an energy carrier in a bid to decarbonize the economy. Multiple pilot projects are underway globally to produce large amounts of hydrogen and supply it as an energy source to households and industries.

For transportation, pipelines are expected in the long term to be one of the most cost-effective and safe ways to transport hydrogen. Ships, rail, and trucks will likely be used for transportation in scenarios where pipelines are not feasible—either due to long distances or a lack of infrastructure.

The number of national hydrogen pilot projects worldwide is expanding rapidly, especially for green hydrogen. Green hydrogen is typically produced via water electrolysis using renewable electricity from wind or solar farms. Compared to hydrogen produced from sources such as natural gas (known as blue hydrogen), green hydrogen involves a more decentralized production model. Consequently, the need to identify viable transportation methods and develop cost-effective, reliable pipelines is becoming increasingly significant.


To connect hydrogen production and consumption, a single transport pipeline or a complete grid is a realistic scenario.

At a large scale, this includes transmission and composite pipelines could be used to connect sections of the backbone or connection of offshore production to shore.Large capacities, possibly multiple composite pipelines vs one large steel pipeline. Pressure level still to be determined (50-70 bar as a first estimate).

At small/local scale, distribution within industrial cluster or hydrogen hub. Pressure level of 30-40 bar (output electrolyser).





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Innovation

Hydrogen Pipeline



As a key player in composite pipeline technology, Goldstone is actively developing a diverse range of Reinforced Thermoplastic Pipes (RTP) and Fiber Composite Pipes (FCP) specifically engineered for hydrogen pipeline systems. This focus aligns with the growing global demand for safe, durable, and efficient infrastructure to support hydrogen’s role as a clean energy carrier—especially given hydrogen’s unique properties (such as high permeability and potential for material embrittlement) that pose challenges to traditional metal pipelines.




To address these industry-specific needs, Goldstone leverages its robust R&D capabilities in composite pipe design and advanced manufacturing machinery. Our composite pipe design portfolio covers multiple tailored solutions: for instance, designs optimized for different hydrogen transport scenarios from low-pressure distributed hydrogen stations to high-pressure long-distance transmission lines.




Complementing these designs is our fleet of specialized manufacturing equipment, including automated winding machines, precision extrusion lines, and in-line quality testing systems, which enable consistent production of pipes that meet strict industry standards for hydrogen service.

This integration of diverse design capabilities and advanced machinery allows Goldstone to manufacture multi-functional composite pipes for hydrogen pipelines. By delivering such versatile solutions, Goldstone aims to support the scaling of global hydrogen infrastructure—helping clients address key pain points like material durability, operational safety, and cost efficiency in hydrogen transport.

Gas Permeation


With the PA layer, corrosive gases can also be prevented from contacting the steel reinforcement in the middle of the composite pipe; therefore, the corrosion of the RTP pipe is significantly slowed down, and the pipe can serve a long service life. This effectively addresses the corrosion susceptibility issue of the steel-reinforced RTP pipes.

As an advanced technology, a five-layer co-extrusion structure has been developed, with the EVOH liner serving to enhance gas barrier performance. EVOH boasts gas barrier performance that is several orders of magnitude higher than that of HDPE, ensuring the pipeline remains essentially corrosion-free and making it suitable for hydrogen transportation.

However, EOVH layer is very thin and soften, so it should be place in the middle of composite structure