Water Handbook - Preboiler & Industrial Boiler Corrosion ...

The consensus is that feedwater oxygen iron and copper content should be very low (e.g. less than 7 ppb oxygen 20 ppb iron and 15 ppb copper for a 900 psig boiler) and that pH should be maintained between 8.5 and 9.5 for system corrosion protection.

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Shell Coal Gasification Process - an overview ...

The Shell coal gasification process (SCGP) uses an up flow entrained flow gasifier operating on a dry feed at slagging temperatures (Fig. 8.5).The up flow arrangement allows separation of syngas and slag largely within the reactor itself. Typically there are four side mounted burners located in the lower part of the reactor. The vessel containment uses a membrane wall which has a ...

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