Low Emission Hydrogen and Carbon Sequestration Project
Brisbane, Oct 5, 2021 AEST (ABN Newswire) - State Gas Limited (
ASX:GAS) announces its collaboration with Rockminsolutions Pty Ltd ('Rockminsolutions') to investigate the manufacture of low emission hydrogen with carbon sequestration in the west of its 100%-owned ATP 2062 Rolleston-West Gas Project.
Highlights
- State Gas enters into Memorandum of Understanding (MoU) with Rockminsolutions toinvestigate carbon sequestration and low emission hydrogen.
- Hydrogen to be manufactured from gas, with carbon to be securely stored based on aproven process being implemented in Iceland and elsewhere in Europe.
- Dissolved carbon dioxide to be pumped underground, to form solid-form carbonateminerals for long term, safe and stable storage.
- Proposed project site on the western border of State Gas' 100%-owned ATP 2062Rolleston-West Project in Central Queensland.
State Gas has entered into a MoU with basalt specialist Rockminsolutions to investigate the potential to sequester carbon dioxide in the Buckland Basaltic Sequence within and surrounding the western area of ATP 2062. The carbon mineralisation technique is based on a process currently being successfully implemented by Carbfix (www.carbfix.com) at the Hellisheidi power plant in Iceland. Carbfix has developed a novel approach to capturing and storing CO2 by its capture in water and injection of the solution into suitable subsurface basalts. The Hellisheidi carbon mineralisation project in Iceland has attracted high-profile investors including Microsoft Corp. founder Bill Gates.
The western area of ATP 2062 contains a large portion of the Buckland Basaltic Sequence, an extensive area of Tertiary aged basaltic ignimbrites (volcanic ash deposits) up to 330m thick, having similarities with basaltic rocks at Hellisheidi in Iceland.
Under the Carbfix process, carbon dioxide is dissolved in water and pumped into a favourable rock formation. The solution then reacts with minerals present in the rock to create carbonates such as calcium carbonate and magnesium carbonate. In these forms, the carbon is stable and safe and can be expected to remain so for thousands of years. In its trials in Iceland, Carbfix has found this process has resulted in more than 95% of carbon mineralising underground within two years.
Basaltic ignimbrites such as those in the Buckland Basaltic Sequence within and adjacent to ATP 2062 are considered to have the greatest potential for the sequestration of carbon by this process. Basalt rocks are highly reactive and contain the elements needed for permanently immobilising carbon dioxide through the formation of carbonate minerals. When in the form of non-welded ignimbrites, the basalt is likely to be very permeable and porous, containing storage space for the mineralised carbon.
Dissolving the carbon dioxide in water creates a stable solution which can be readily pumped into formations much shallower than those required for traditional carbon sequestration. The high porosity of the rock is expected to facilitate the retention of the carbonated water without the need for a geological seal. As a result, the Carbfix process has the potential to provide a more secure carbon storage solution at substantially lower cost than traditional processes.
Should investigation of the project area confirm the potential of the Buckland Basaltic Sequence to store carbon dioxide, State Gas and Rockminsolutions envisage manufacturing hydrogen from gas, which may be sourced from State Gas' Rolleston-West or adjacent Reid's Dome Projects. Carbon dioxide created through the process would be stored within the Basaltic sequence underground, creating a safe and sustainable low emission hydrogen.
State Gas Executive Chairman, Richard Cottee, said that the Company was very pleased to enter into the hydrogen and sequestration initiative with Rockminsolutions.
"While State Gas remains focussed on development of its Reid's Dome and Rolleston-West Gas Projects, the carbon mineralisation approach has the potential to be a game changer in the production of low emission hydrogen from gas", he said. "A combined gas and hydrogen portfolio would provide significant optionality for State Gas into the future."
"State Gas is committed to reducing its carbon footprint whilst ensuring there are sufficient supplies of natural gas, and eventually hydrogen, to enable the transition to a lower carbon future. Hopefully this MOU will bring the technology forward to coincide with the development of the Rolleston-West Gas Project in Central Queensland", Mr Cottee said.
"With worldwide gas prices at decades' highs, State Gas remains focussed on bringing its Reid's Dome and Rolleston-West gas to the east coast market. Our gas projects are not restricted by domestic gas reservation requirements, providing even more optionality for commercial opportunities over the next few years."
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About State Gas Limited
State Gas Limited (ASX:GAS) (OTCMKTS:STGSF) is a Queensland-based gas exploration and development company with highly prospective gas exploration assets located in the southern Bowen Basin. State Gas Limited's mission is to support east coast energy markets through the efficient identification and development of new high quality gas assets.
It will do this by applying an agile, sustainable but low-cost development approach and opportunistically expanding its portfolio in areas that are well located to gas pipeline infrastructure.
State Gas is 100%-owner of the contiguous Reid's Dome (PL-231) and Rolleston-West (ATP 2062) gas projects, both of which contain CSG and conventional gas. The Projects, together some 1,595km2 , are located south of Rolleston, approximately 50 and 30 kilometres respectively from the Queensland Gas Pipeline and interconnected east coast gas network. State Gas intends to accelerate commercialisation of these assets through the application of an innovative virtual pipeline ("VP") solution which will see the Company transport compressed gas by truck to existing pipeline infrastructure or to an end user.
State Gas also holds a 35% interest in ATP 2068 and ATP 2069 in joint venture with Santos QNT Pty Ltd (65%). These two new areas lie adjacent to or in the near vicinity of State Gas and Santos' existing interests in the region, providing for the potential of an alignment in ownership interests across the region over time and enabling synergies in operations and development.
State Gas is also participating in a carbon capture and sequestration initiative with minerals explorer Rockminsolutions Pty Ltd in respect of EPM 27596 which is located on the western border of ATP 2062. This project is investigating the potential of the unique basalts located in the Buckland Basaltic Sequence (located in EPM 27596) to provide a variety of in-situ and ex-situ carbon capture applications.
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