Kent, as part of a consortium with Essar, Progressive Energy and Johnson Matthey, has delivered a Front End Engineering Design (FEED) for a Low Carbon Hydrogen Plant to be located on Essar's Stanlow Refinery.
Following on from our work in the conceptual design phase, the scope on the Hydrogen Plant includes the carbon capture technology selection and the development of the FEED deliverables and cost estimate.
During the pre-FEED phase we were responsible for:
Our role during FEED has continued the above responsibility, and has developed to include the carbon capture, CO₂ dehydration, refinery off gas, planning application support, EIA, environmental permitting support, ecology studies and site investigations (site visit, ecology, geotech, topographic).
We developed the design of the carbon capture unit from a Licensor flowsheet all the way to a fully integrated 3D model and cost estimate suitable for carrying forward to the next phase of the project.
HyNet North West is a significant clean growth opportunity for the UK. It is a low cost, deliverable project which meets the major challenges of reducing carbon emissions from industry, domestic heat and transport. HyNet is based on the production of hydrogen from natural gas. It includes the development of a new hydrogen pipeline; and the creation of Carbon Capture, Utilisation, and Storage (CCUS) infrastructure. CCUS is a vital technology to achieve the widespread emissions savings needed to meet the 2050 carbon reduction targets.
HyNet is a complete system of hydrogen production, hydrogen supply, hydrogen utilisation, carbon capture, transportation, and carbon sequestration located in a concentration of industry, existing technical skill base, and suitable geology. The close proximity of hydrogen production, utilisation, and carbon sequestration means that the HyNet system offers lower capital cost and development risk compared to other potential clusters around the world.
The project uses Johnson Matthey Low Carbon Hydrogen (LCH™) Technology.
The LCH flowsheet recovers heat at maximum exergy (ie the highest possible quality) which offers efficiency benefits by coupling a gas heated reformer (GHR) with an autothermal reformer (ATR). The main difference between the LCH and Steam Methane Reforming (SMR) flowsheets is that the energy to drive the reaction is provided by introducing oxygen to the ATR as opposed to burning natural gas in the SMR.
At the scales envisaged, this oxygen would come from an air separation unit. ATRs are already used in the production of syngas and are part of most modern schemes for production of methanol and liquid fuels from Fischer- Tropsch processes. These plants are very large and demonstrate that the technology is capable of producing hydrogen at large scale and therefore the scale-up risk is minimised