CHEMENG 2G03 Lecture Notes - Fossil-Fuel Power Station, Flue Gas, Cooling Tower
23 Nov 2012
School
Department
Course
Professor
Document Summary
Developed sinter" for cross software communication to allow excel and aspen plus models to compute data together. Steam flow is 3,670,000 lb/h at 1050 deg f and 2415 psia in a 550mw pulverized coal power plant. Limestone slurry-> flue gas-> gypsum to reduce so2 in flue gas to about 54ppm. Cooling tower (primarily by evaporation, partially by heat transfer to air. ) Us department of energy (doe) requires reduce in fresh water withdrawal and consumption by 70% by. 2020 and at 50% less that dry cooling costs. Doe goal to capture 90% co2 with less than 30% increase in cost of electricity. Parasitic load of carbon capture technology today is about 35% of the plant"s output. Flue gas pretreatment, absorber, stripper, compressor, auxiliary cooling tower multiple pipes 30ft dia max. After mea, combined into 2 separate compressor trains (steppers) Naoh spray reduces s02 to 0. 005ppm in pretreatment. Entering mea flue gas-> 21wt% co2, 7wt%h2o.
