High temperature solar thermochemical processing—hydrogen and sulfur from hydrogen sulfide

Sunlight, concentrated to high intensities, has a rarely recognized potential for adding process heat to reactors at high temperatures. Hydrogen sulfide is a by-product of the sweetening of fossil fuels. In this paper, we use, as an example, the production of hydrogen and sulfur from hydrogen sulfide as a device for showing how solar processing might be considered as a successor to a currently used industrial process, the Claus process. We conclude that this and other processes should be explored as means of using as well as storing solar energy.