Cogeneration in large complexes

Journal Article · Mon Feb 01 04:00:00 EST 1982 · Chem. Eng. Prog.; (United States)

OSTI ID:6856510

Kovacik, J M; Franklin, J C

Power cogeneration in large chemical plants producing sulfuric acid and phosphate fertilizers is covered. In these plants, a large quantity of ''by-product steam'' is generated which can be expanded prior to extraction for process use. Steam generated in excess of process needs can be expanded through the steam turbine to a condenser. The combination of a sulfuric acid production facility with a phosphate complex producing wet process phosphoric acid and diammonium phosphate provides a unique opportunity for cogeneration. The exothermic oxidation reactions in the production of sulfuric (or nitric) acid provide the thermal energy for ''by-product'' steam production at elevated steam conditions. Expanding the steam generated in an automatic extraction, condensing steam turbine-generator permits power generation without any incremental fuel requirement in the process plant. Furthermore, steam demands for the phosphate complex for evaporators, vaporizers and other uses would be extracted from the steam turbine-generator. Many of the practical energy systems as well as hardware considerations have been briefly discussed. The data and examples presented illustrate the attractive economics and operational flexibility which are available through use of these cogeneration systems.

• Research Organization: GE, Schenectady, NY, USA
• OSTI ID: 6856510
• Journal Information: Chem. Eng. Prog.; (United States), Journal Name: Chem. Eng. Prog.; (United States) Vol. 78:2; ISSN CEPRA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CHEMICAL PLANTS
COGENERATION
DEUS
ECONOMICS
ENERGY SYSTEMS
FERTILIZER INDUSTRY
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
INDUSTRY
INORGANIC ACIDS
MACHINERY
POWER GENERATION
STEAM GENERATION
STEAM SYSTEMS
SULFURIC ACID
TURBOMACHINERY