Many bioethanol production sites are challenged with ethanol loss caused by traditional fermentation gas scrubbers. Due to the conventional packing and high water consumption, low concentration ethanol is collected in the scrubber bottom and recycled back to the fermenters or further upstream, which creates an in-efficient ethanol loop.

Bioethanol production sites that wish to expand to meet market demand and/or run more cost-effectively, may need to meet revised venting norms, ideally without impacting the water balance. Unless a change is made to the gas scrubbing process the plant will continue to operate with higher water consumption, which negatively impacts revenue.

• Low ROI < 1 year achieved
• Water savings
• High ethanol content > 12 v/v% in scrubber bottom

• Free up capacity
• Retrofittable - Easy integration
• Potential heat recovery
• Low pressure drop