A career spanning 30 years in the industrial gases, energy and chemicals sectors has given Harrison significant exposure to multiple aspects of the hydrogen economy. He worked in business, engineering and operational roles for BOC Gases and Linde Gas at a senior global executive level, then and as a consultant at sbh4 GmbH. At BOC he operated SMR plants for hydrogen production. At Linde he managed a business that included a range of hydrogen electrolysers for sale or lease to customers.
Harrison has an intimate knowledge of the modern hydrogen value chain and associated green hydrogen production equipment such as the four main types of electrolysers (SOE, AEC, PEM and AEM) in use at an industrial scale today. Beyond the SMR and ATR routes, gasification of coal, petcoke and waste are also well known to Stephen as hydrogen production pathways. These combination of these ‘grey’ hydrogen technologies combined with CCS can yield low-carbon, or blue hydrogen. The hydrogen production technologies which are still at an R&D or early commercialisation stage, such as plasma gasification, plasma electrolysis and methane pyrolysis are also within his scope of expertise.
In addition to the production of hydrogen, Harrison is also highly familiar with hydrogen applications in industry, such as refining, steelmaking and chemicals. He also has expertise in the emerging applications in hydrogen mobility for cars, buses, trucks, trains, planes and boats. As a member of H2 View’s Editorial Advisory Board, he writes frequently on hydrogen production, distribution infrastructure, applications, decarbonisation and renewable energy policies.