Benefits of A-Recovery+ methanol purification
- Environmental and economic savings
- Avoids cost of purchased fuels
- Additional opportunities for revenue generation with bio-methanol
- Removes obstacles to fossil-free operation
ANDRITZ's innovation called A-Recovery+ shines a new light on the chemical cycle in a kraft mill. It offers tailored solutions to optimize the chemical balances in the mill and the ability to generate additional revenue and/or avoid the purchase of costly make-up chemicals.
Today, for example, raw methanol originating from the kraft cooking process is often used as a support fuel – typically combusted in the recovery boiler or lime kiln. Methanol is usually the last fossil-based chemical in a kraft mill, preventing the establishment of a completely fossil-free mill.
The A-Recovery+ chemical recovery solution for methanol purification uses a patented, mineral oil-based extraction process. Purified methanol can be used as a low-NOx fuel for combustion in the recovery boiler or lime kiln, or as a support fuel in the sulfuric acid plant. Commercial-grade bio-methanol can also be sold for revenue or used in ClO2 generation if performed on-site.