Mr. David Middleton, Group Chief Engineer of Tanzania Breweries Ltd. explains: ”From our fermentation, we can extract enough raw gas for producing CO2 for overall beer production. But since we are also producing soft drinks and sorghum beer, we were in need of additional CO2. On the upside, we already owned steam boilers from which to utilize the flue gas. On the downside, we faced the challenge of extremely limited space for implementing additional technologies. The solution was an extraction-based solution in which the gas from the steam boilers was captured and purified, and we needed a supplier who could come up with a fitting design and deliver the right quality of CO2.”
CO2 Extraction Plants (EBU) are based on the extraction of CO2 from flue gas generated in the customer’s steam boiler system. If steam and flue gas supplies are continuously available, significant energy savings (up to 45%) can be achieved using a CO2 extraction plant, compared with traditional combustion-based CO2 plants.
Employing the latest amine plant technologies and appropriate scrubbing, stripping and separation technologies, including the NOx flash system avoiding the use of potassium permanganate (PPM), the CO2 extraction plants meet the strictest CO2 quality requirements.
Due to the limited space in the existing building, finding a solution to allow room for service technicians was crucial.