Competitive hydrogen and syngas based power with carbon capture
Electricity accounts for about 1/3rd of GHG emissions worldwide; whilst decarbonization of power systems have focused on renewables and post-combustion carbon capture systems, future power systems also need to secure the availability of near zero-emission and net carbon-neutral power at a cost comparable to current utility-scale dispatchable power generation systems.
Gasification of the appropriate blend of feedstocks such as coal, petroleum waste (petcoke) and biomass, coupled with commoditized cost (US$ 12 – 15/tonne of CO2) pre-combustion capture of dense stream CO2 dense stream can be used to design a carbon neutral industrial system with scalable hydrogen and syngas based power modules. Such an industrial system offers scalable, flexible, competitive and affordable net carbon neutral and near-zero emissions power production at an industrial scale. The envisaged system is based on system engineering innovations and integration of commercially established individual sub-systems and can replace traditional coal-based baseload power and complement intermittent, variable and non-dispatchable renewable power. The project viability can be further enhanced through 45Q tax credits by compressing and transporting the captured dense stream CO2 for permanent sequestration in appropriate geological sites or for EOR in maturing oil fields, depending on the location.
Dastur Energy is designing clean and cost-effective hydrogen heavy IGCC (integrated gasification combined cycle) power systems for its clients, to enable them to meet their ESG goals and also substitute expensive fossil fuel-based grid power for their internal consumption needs. The systems build on commercial scale established and emerging clean power generation technologies with high operating efficiencies and reliabilities, such as gasification, IGCC/hydrogen combustion turbines, super critical CO2 cycles, and dense stream carbon capture. Design of economically attractive clean power cycles includes integrating hydrogen polygeneration, carbon disposition strategy, switching between CO2 EOR and sequestration, and the design of a market resilient, product hedged and flexible business model.
CO and H2 rich syngas produced from the gasification of almost all ranks of coals (with the flexibility to add other feedstock like petcoke and biomass depending on market dynamics) can be used to generate power from IGCC/ hydrogen power islands, along with the co-generation of hydrogen and cost-effective dense stream carbon capture to the extent of 95%+. The co-generation of hydrogen offers several advantages: