Air Products recently celebrated its 100th installation of its cryogenic hydrogen compressor (CHC) system at the 2013 NORA Annual Recycling Conference & Trade Show in Carlsbad, Calif. The CHC system from the industrial gases supplier delivers high-pressure hydrogen for chemical, refinery, and bio-energy production.
The CHC system’s proprietary technology provides hydrogen flow rates of up to 120,000 cu-ft/hr at pressures of 10,000 psi. The CHC recaptures gas that is discharged through normal heat leak vaporization and deploys it back into the process supply, resulting in operational savings.
Also, unlike traditional H2 compressors, which generate a constant flow output, the CHC technology can follow dynamic loads, producing hydrogen at a rate that will closely match fluctuating demands. Doing so virtually eliminates vent losses, something that traditional pumps have to emit when their output exceeds the demand.
Air Products says the CHC system, which comes in multiple capacity configurations, generally costs less to install than on-site hydrogen generation and low-pressure liquid hydrogen supply combined with gas compression. The lower operating costs, it says, come from the system’s high efficiency.
The compressor can be used to produce fuel that can be sold via Air Products’ SmartFuel H70/H35 retail hydrogen dispenser for filling up hydrogen-powered vehicles at fueling stations. Compliant with SAE standards, it is capable of providing both H70 (700 bar) and H35 (350 bar) hydrogen fuel.
The company also recently announced plans to build a 150 million scf/day hydrogen production plant northeast of Edmonton, Alta., to supply Shell Canada’s Scotford chemicals plant and refinery by means of a 30-mile pipeline. The hydrogen is used in petroleum refining processes to remove impurities such as sulphur, olefins, and aromatics found in crude oil.
Air Products Canada’s existing Heartland Hydrogen Pipeline system supplies refiners, upgraders, chemical processors, and other industries in the Alberta Industrial Heartland region. The new hydrogen plant is scheduled to be commissioned in the second half of 2015 pending regulatory approval.