Elizabeth F. Rhodes BP Amoco Seal Sands, England
Paul J. Openshaw, Peter J.H. Carnell Synetix Billingham, England
Treating dense-phase natural gas with fixed-bed technology has proven effective and economic at the North Sea terminal for Central Area Transmission System (CATS).
CATS is a joint venture of BP Amoco, BG, Amerada Hess, Phillips, Agip, and Fina, and operated by BP Amoco. The terminal receives rich gas from several fields that is relatively sweet, but small amounts of H2S and Hg are present and must be removed.
Fixed-bed technology was selected as the most economic purification process, while minimizing hydrocarbon loss and operator involvement.