Recovery of Energy Through Exhaust Gas Condensation: A Profitable Idea
The boiler house includes several units; the main ones, Nos. 4 and 5, are used alternately:
– boiler No. 4, nominal capacity of 80 t/h is used mainly in summer;
– boiler No. 5, object of the present project, has a nominal rating of 160 t/h at 115 bar and 525 °C. This unit is used in winter when steam demands vary between 60 and 110 t/h.
The two boilers, equipped with back-pressure turbines, are fitted with burners for natural gas and fuel oil, gas being the main fuel (95%). The low-pressure steam is then used in the various production facilities without any return of condensate to the station. Because of this fact, the feed-water of the boilers is therefore demineralised water, which must be pre-heated by low-pressure steam before being degassed. This pre-heating represents an important part of the total energy consumption.
Document Type: Research Article
Publication date: September 1, 2000
International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions
CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.
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