CO₂ Product for Power Capture in the Identify stage

Objective

• Undertake a high-level analysis of the impacts of the CO2 specification on both upstream and downstream processing options including indicative costs, risks and opportunities
• Identify a range of options that can be furthre evaluated in the next pahse.
• Identify the requirements and or opportunities for any further onsite or offsite treatment of the flue gas stream prior to capture or further processing of the CO₂ product stream prior to transportation.  
• The analysis should consider the opportunities for re-use of captured CO₂ in local industries (such as enhanced oil / hydrocarbon recovery, fertiliser production, algae cultivation, chemical processing).

Major Deliverables

High-level analysis report which identifies a preferred range of CO₂ compositions for various capture, dehydration, and compression technology options and the impact on the pre-treatment requirements on the inlet flue gas stream as well as subsequent transport and storage including:

• Typical flue gas composition from power station at ID fan outlet (inlet to stack)
• Expected resultant CO₂ product specification from various capture, dehydration, and compression technology options
• Preferred flue gas stream inlet requirements for each capture technology option under consideration
• Preferred CO2 compositions for transport and storage options.
• Overview of limitations and impacts of the other pollutants such as dust, SO_x and NO_x,H2S, NH3
• Identification of any incremental treatment opportunities for either the flue gas or the CO2 product streams.
• High level assessment of re-use opportunities and how these would impact on the CO2 specification as well as upstream treatment or processing requirements.

Tasks

Specific tasks include the following:

• Identify flue gas composition that could enter the capture process. The composition should highlight any substances which could adversely impact the performance of the capture plant
• Identify if any further treatment of the flue gas could be required prior to entering the capture plant, and identify pre-treatment options
• Identify the likely composition of the CO₂ product stream from the various capture plant technology options
• Identify potential CO₂ reuse options in the local area and likely CO₂ specification requirements
• Identify any potential impacts or limitations of the resultant CO₂ product stream on the downstream elements of transportation and storage or reuse
• Identify if any further treatment of the CO₂ product stream could be required and identify treatment options

Examples

• Liquefaction of captured CO₂ for ship-based transport; Aspelund et al. 7th International conference on Greenhouse Gas Control. 2004
• Accelerating the uptake of CCS: Industrial use of captured carbon dioxide; Global CCS Institute, Parsons Brinckerhoff

Key Personnel

• Project Manager
• Engineering work-stream lead
• Project Engineers
• Process Engineers
• Key Engineering sub-consultants