Brunsbuttel, Germany – Clever pressure control and in-process heat generation could make producing MDI more energy efficient. Covestro made the claim at the launch of a new technology for its synthesis.
The company said the process is based on adiabatic-isothermal phosgenation. This produces MDI with 40% less steam and 25% less electricity for each tonne of product than conventional routes, it said. Overall, 35% less CO2 is generated for each tonne of MDI produced on the pilot plant, and output is 50% greater than conventional processes.
'I am confident that that new technology will pass its practical test and become an important component of our growth strategy for MDI,' said Daniel Meyer, head of polyurethanes at Covestro. The pilot phase should be complete in around 12 months' time.
Covestro said this can help customers reduce the carbon footprint of their products.