Dec 01, 2012 · Thus, a 6,000 tonnes of clinker per day cement plant owner aiming to reduce emissions by 40% would save approximately GB £10 million per annum to invest. This sum could be amortized over 5 years to cover the cost of GB £50 million of investment in plant upgrade, or pay back GB £100 million pounds in 10 years. Beyond these periods, all long ...