Filter › After Reactor

DETERGENT SULPHONATION / AFTER THE SULPHONATION REACTOR

PROCESS INFORMATION

SO₃ gas is used in a sulphonation reaction process. Fibre filters which are installed after the sulphonation reactor remove up to 4,000 mg/m³ sulphonated hydrocarbon mist.

Due to the high viscosity liquid produced with over sulphonisation, it is recommended (a) to have a stand-by filter unit in parallel, or (b) to have an irrigated demister unit in front of the fibre filters; in any case a Δp metered wash spray system is normal on the candle filters, and the vessel may be trace heated and insulated.

PROBLEMS TO SOLVE

Protection of downstream equipment from corrosion.

Protect final product quality.

DESIGN SOLUTIONS

• Medium Velocity ‘Becofil’ Candle Filters, standing type F, with B12 Glass Fibre elements and 316L Stainless Steel or ‘high chrome’ alloy structure.
• High Efficiency, Brownian Diffusion ‘Becofil’ Candle Filters, hanging type HT or standing type F, with TGW15 or B14W Glass Fibre elements and 316L Stainless Steel or ‘high chrome’ alloy structure.
• High Efficiency, Brownian Diffusion ‘Becofil’ Candle Filters, with our STAR intermediate drainage rings , hanging type HT or standing type F, with TGW15 or B14W Glass Fibre elements and 316L Stainless Steel or ‘high chrome’ alloy structure.