Shell’s Cansolv Technologies subsidiary has signed an agreement with Beiji ...

Shell’s Cansolv Technologies subsidiary has signed an agreement with Beijing Guodian Longyuan Environmental Engineering (GDLY) to licence a Cansolv sulphur dioxide (SO2) scrubbing system for a new 1.2-GW coal-fired power plant to be built by China Guodian Corporation at Duyun in Guizhou province, China. The technology will be used to remove more than 99.9% of SO2 from the power plant’s flue gas. The captured SO2 will be converted into sulphuric acid, to be utilised in a local fertilizer plant. GDLY claims the Cansolv system will eliminate more than 1mn t/y of landfill produced from conventional non-regenerable systems, which utilise a once-through absorbent that cannot be reused and therefore generates effluent streams. A regenerable desulphurisation technology can reuse an absorbent by recycling it through the system over and over again, resulting in less waste and cost savings without the need to restock.

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