A final investment decision has been taken to move forward with the world’s first carbon-negative hydrogen commercial pilot project — which uses an innovative process that could undercut conventional methods of producing green and blue H2. Australian technology company Hazer will convert biogas derived from sewage at a wastewater treatment plant in Western Australia into hydrogen and graphite using its proprietary Hazer process. By splitting the biogas (mainly CH4) into hydrogen (H2) and graphite (C) using an iron-ore catalyst, carbon that would otherwise be emitted as CO2 as the sewage decomposed is stored in the form of solid graphite, making it a carbon-negative process. The company previously told Recharge that the graphite can be sold to industry for a profit, effectively offsetting the cost of the hydrogen to the point where it becomes cheaper than other forms of clean H2.
Recharge 31st July 2020 read more »