Selecting hydrogen production methods using fuzzy analytic hierarchy process with opportunities, costs, and risks

In this study, we evaluated six hydrogen-producing methods using a fuzzy analytic hierarchy process (AHP) under benefits, opportunities, costs, and risks concepts. Twelve factors were set up, and the weights of each factor were appraised using the fuzzy AHP method. We conclude that steam methane reforming is the optimal method for hydrogen production in Korea; equipment investment cost and market size are the most important factors, while the indirect benefits such as spillover effect, human resource development, and environmental contribution are less important. The results show that achieving economic feasibility and lowering risks are very important. Therefore, considering stable natural gas prices and unconventional gas production, steam methane reforming is a promising option for hydrogen production.

► We evaluated six methods of hydrogen production using a fuzzy AHP under BOCR concepts.
► Steam methane reforming was evaluated as the optimal method for hydrogen production.
► Equipment investment cost and market size were the most important factors.
► Factors for indirect benefits were less important.
► The importance of distribution cost and environmental contribution were also low.