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Technoeconomics and Carbon Footprint of Hydrogen Production by Jimmy Rojas; Shang Zhai; Eddie Sun; Vasudev Haribal; Sebastian Marin-Quiros; Amitava Sarkar; Raghubir Gupta; Matteo Cargnello; Will Chueh; Arun Majumdar is a Engineering article available to read on EtoBox.

What is Technoeconomics and Carbon Footprint of Hydrogen Production about?

Decarbonization of the global economy needs not only carbon-free electricity but also a fuel that is free of greenhouse gas emissions. Hydrogen is a prime candidate, with colors such as gray, blue and green production methods receiving attention. Generally missing from this discourse, however, is a quantitative comparison on the cost, scale, carbon footprint and infrastructure requirements for each of these technologies. Here we present a detailed technoeconomic comparison of five hydrogen production technologies: thermochemical water splitting, methane pyrolysis, water electrolysis, steam methane reforming, and chemical looping hydrogen production. Steam or autothermal methane reforming with carbon capture (SMR + CC) at large scale sets the benchmark for costs, but at small scales, electrochemical technologies appear more suitable. Potentially competitive with and sometimes more affordable than SMR + CC are chemical looping hydrogen production and methane pyrolysis. The impacts of the CO2 footprint of the electricity grid and a price on CO2 are also quantitatively evaluated. A qualitative consideration of the ability to leverage existing infrastructure is also offered with a view

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Author

Jimmy Rojas; Shang Zhai; Eddie Sun; Vasudev Haribal; Sebastian Marin-Quiros; Amitava Sarkar; Raghubir Gupta; Matteo Cargnello; Will Chueh; Arun Majumdar

Publisher

Elsevier BV

Published

2024

Language

EN

Field

Engineering (Physical Sciences)