Industrial Production Processes
Industrial processes are sources of greenhouse gas emissions in many ways. First, recovery of waste energy from heavy industrial production like cement and steel has potential to reduce overall energy demand from the grid. Additionally, energy efficiency options may be identified through overall energy audits and possibly implemented by energy service companies.
In some specific industries there may be more potent reduction options, like in the chemicals sector or in cement, where clinker replacement is a significant source of emissions reduction. The capturing and reusing of CO2 from industrial processes is also an option for emissions reduction.
The most obvious reduction is of certain highly polluting gases, which are used for – or are by-products of – industrial production, and have global warming potentials of up to 23,900 times that of CO2. These gases are currently the source of more than half of the CERs issued from CDM projects and not all options are exhausted yet.
The selection of industrial sectors in which CDM has assisted in reducing carbon emissions is diverse and comprises:
- Carbon Capture
- Energy Efficiency in Industry
- Industrial Waste Heat and Waste Gas
- Industrial Gases
- Other Industrial Processes
- Coal Mining and other Mining
- Oil and Gas
Procesos de producción industrial
The project involves utilisation of waste heat for electricity generation, on-site at a cement production facility. The recovery of the excess heat takes place at two different stages in both of the production lines, via four recovery boilers. The heat retrieved at the two different stages, is of different temperatures. The recovery boilers responsible for the higher temperature waste heat will produce superheated steam and feed it directly to the steam turbine. In the case of the recovery boilers retrieving the lower temperature excess heat, the output of these will be hot pressurized water, which in turn will be fed through a flash steam generator to produce saturated steam before feeding it through the steam turbine. Exhaust gasses from the steam turbine, will be utilised for the preheating of raw materials and other stages of the production line where process heat is vital. The electricity generating steam turbine has a capacity of 13.2 MW, generating
89,500 MWh annually, resulting in a reduction of 107,116 tonnes of CO2 emissions per year.
Project CO2 reduction over a crediting period of 7 years: 741,260 tCO2e (per/year:105,893)
UNFCCC project ref. no.: 366