Comment PDF Business & Economics
Recover Waste Heat From Fluegas
By Ali Bourji, John Barnhart, Jimmy Winningham and Alan Winstead, WorleyParsons |
The ever-increasing cost of fuel and relentless push for environmental responsibility are constant factors in the profitability of many chemical process operations, and fluctuations in the prices of natural gas and other fuels can make it hard to predict future energy costs and the impact of such fluctuations on profits. However, the impact of fluctuating fuel costs, and the regulatory uncertainty related to managing emissions can be reduced by increasing energy efficiency and incorporating innovation into the design of any combustion-related system that produces fluegas.
Numerous industrial processes involving furnaces, heaters, kilns and boilers that combust fossil fuels release large quantities of energy in the form of waste heat that is contained in the fluegas. An organic Rankine cycle (ORC) system can efficiently utilize this waste heat to generate electricity, even from relatively low-temperature fluegas streams.
An ORC resembles a typical Rankine cycle, but instead of circulating water as the working fluid, an ORC uses a refrigerant — typically an organic fluid such as ethane, propane, propylene or various name-brand refrigerants, such as R-245fa (discussed below). An ORC also operates at lower temperatures compared to…
Related Content The U.S. Chemical Production Regional Index (U.S. CPRI) rose 0.8% in January following a 1.4% gain in December and a…
The American Chemistry Council (ACC; Washington, D.C.; www.americanchemistry.com) reported that U.S. specialty chemicals market volumes rose 1.2% in January, accelerating…
The following is a list of recently published books that may be relevant for professionals in the chemical process industries…
Plant Watch Austria’s largest green-hydrogen plant being constructed at OMV refinery February 16, 2021 — OMV AG (Vienna, Austria; www.omv.com)…
The Chemical Activity Barometer (CAB), a leading economic indicator created by the American Chemistry Council (ACC; Washington, D.C.; www.americanchemistry.com), rose…
Breakthrough Technologies
Chemical Engineering publishes FREE eletters that bring our original content to our readers
in an easily accessible email format about once a week.
Subscribe Now
Subscribe Now
Job Listings