Hydrogen

Utilization of food waste for hydrogen-based power generation: Evidence from four cities in Ghana

“…The production of biogas and hydrogen both share the process of biomass conversion. The initial resource is transformed at high temperatures without combustion into a hydrogen-containing gas [ 105 ].…”

“…Hydrogen has primarily been used for hydrocracking and fertilizer production for the past 100 years. With the emergence of the hydrogen economy, this has changed and people consider hydrogen a fossil fuel substitute [ 105 ]. Advocates of a low-carbon future have pointed to a hydrogen economy as a revolutionary step in the right direction.…”

Hydrogen liquefaction: a review of the fundamental physics, engineering practice and future opportunities

“…59 Storage and Transport is crucial to the establishment of a hydrogen value chain. The focus of this review, liquid hydrogen, is one of many technologies [63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82] likely to play a significant role in Fig. 1 The hydrogen value chain and its relation to the focus of this review into hydrogen liquefaction.…”

“…Storage and Transport is crucial to the establishment of a hydrogen value chain. The focus of this review, liquid hydrogen, is one of many technologies 63–82 likely to play a significant role in the international trade of hydrogen. While the production stage usually generates gaseous H 2 , storing and transporting the associated energy over long time scales and distances requires the implementation of a physical or chemical conversion process within the 3rd stage of the value chain to achieve a viable energy density.…”

Technology comparison for green hydrogen production

“…On one hand, hydrogen as a versatile molecule that affects several sectors can contribute to decreasing these emissions in a very significant way if it is produced with clean processes. It's not only one of the oldest chemical elements, but also the most abundant atom in the universe [2]. On the other hand, the calorific value of hydrogen is the highest among the existing fuels.…”