CHP
New £5.5 million steam turbine at the Tata Chemicals CHP plant
A £5.5 million (US$7.1 million) steam turbine has recently been inaugurated at the Tata Chemicals CHP plant in Northwich, Cheshire, UK. The highpressure steam used is a useful byproduct of industrial processes at the chemical plant, captured by heat recovery boilers, Tata reports. Tata Chemicals Europe (TCE) is one of Europe's leading producers of sodium carbonate, salt, sodium bicarbonate and other products. TCEL is also headquartered in Northwich, and has manufacturing operations where it produces soda ash, salt, sodium bicarbonate, calcium chloride and Crex®.
E
.ON has been Tata Chemical's strategic partner in the turbine’s installation and managed the key development of the CHP plant..
Mike Wake, Head of Business Heat and
Power Solutions at E.ON, told WIP: ‘Taking advantage of heat energy as steam and using it more effectively means we can help reduce this site’s carbon footprint whilst ensuring a chemical works which has been operating since 1874 continues to go from strength to strength in such a commercially challenging time.’ The combined heat and power (CHP) plant in Northwich, Cheshire, is one of the largest
such schemes in the UK. In September 2013, Tata Chemicals Ltd took ownership of the asset and E.ON now manages the operation and maintenance of the plant under and Operational and Maintenance contract man- aged by Business Heat (CHP). The plant has a thermal capacity of 400
MWth and is capable of generating 130MW of electricity. Two sites are currently supplied by the
CHP plant, Lockstock and Winnington. The main CHP plant consists of two gas turbines, two heat recovery boilers and a steam turbine and, for security of supply, also has stand-by boiler capacity.
“Taking
advantage of heat energy
as steam and using it more effectively
means we can help reduce this site’s carbon
footprint .”
Mike Wake, Head of
Business Heat and Power
Solutions at E.ON
The natural gas fuelling the plant is
supplied through a buried, 11-kilometre underground pipeline. The large quantity of steam produced is
utilised in Tata's manufacturing processes and a proportion is returned to the CHP plant as water condensate.
The Lostock site is supplied with steam
from the plant via two steam mains running for 5km. At the site, steam is utilised in the chemical process and some is passed through a steam turbine to generate more electricity, and to produce a lower pressure steam for process use. Again, a proportion of the steam used is returned to the CHP plant ascondensate via another pipeline.
www.eonenergy.com
40 AUTUMN 2016 UK POWER NEWS
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