Telephone: 0161 339 4549

Established 1960

Facsimile:0161 343 3305

Member of the Manchester Chamber of Commerce

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Wellington works, Wellington Road, Ashton Under Lyne, Lancashire  OL6 7EF

The most efficient H2S remover yet.

We manufacture and intsall the 'GASRAP' modular system for the removal of H2S from biogas produced from anaerobic sludge digestion. We aslo design and manufacture purpose built Exhaust Gas Heat Recovery Modules for gas engines fuelled on biogas or natural gas.

The high levels of H2S contamination of sewage gas from sludge digesters is now of great concern. Severe and expensive damage has occurred at many sites to top end engine bearings, exhaust gas heat exchangers, even those manufactured from stainless steel and boiler back end tube plates.

Not only does the cost of repairs have to be borne, instead of selling power to the grid, expensive power has to be bought in.

Until the advent of GASRAP the only solution was to use expensive 'wet' systems to remove H2S..

Capital and running costs for GASRAP are much cheaper than those for wet systems. A much more flexible system GASRAP only needs to function when H2S levels exceed the safe working maximum for your engine thereby prolonging the intervals between GASRAP recharging. In addition any number of GASRAP modules can be put in series if extremely high levels of H2S are common or in parallel if large volumes of sewage gas are to be cleaned of

H2S GASRAP modules can be easily exchanged on-line with our manifold system so the engine has no down time

Recharging takes place at our own works by our skilled workforce to high safety standards.

The costs of servicing and recharging the GASRAP system are lower than the comparable 'wet' systems. In addition there are no worries about disposal or leakage of the spent 'wet' system chemicals.

GASRAP module on farm location.  The CHP unit  on this farm uses BIOGAS made from farm bi-products. Here the biogas levels were reduced from 4000 ppm down to under 400ppm.