Web Summary
Q1: What is the physical address of First ESCO India Pvt. Ltd.'s headquarters?
A1: The company's headquarters is located at 16, Prince Apartments, Chinna Waltair, Kirlampudi Layout, Waltair, Visakhapatnam, Andhra Pradesh 530017, India.
Q2: What are the phone numbers of First ESCO India Pvt. Ltd.'s contact center?
A2: The company's contact information includes mobile numbers +919642875269, +918465806063, and +919985502589.
Q3: How does the NOx Emission Control process work in First ESCO India Pvt. Ltd.'s systems?
A3: The NOx Emission Control process uses a chemical reaction between ammonia or urea and NOx to reduce emissions by 30% to 50%. The process involves injecting an aqueous or anhydrous ammonia solution into the flue gas, where it decomposes into free radicals that react with NOx to form nitrogen, carbon dioxide, and water.
Q4: What are the advantages of using ureabased NOx reduction systems over ammoniabased systems?
A4: Ureabased systems have several advantages, including being nontoxic, less volatile, easy to store and handle safely, and having a longer depth of penetration into the flue gas. This results in better efficacy of reaction and higher NOx reduction efficiency.
Q5: What is the typical temperature range for efficient SNCR operation?
A5: The typical temperature window for efficient SNCR operation is between 900°C and 1,100°C, depending on the reagent and condition of the system.
Q6: How does the urea injection process for NOx control depend on factors such as flue gas temperature and residence time?
A6: The NOx reduction efficiency of both SNCR processes depends on factors such as flue gas temperature in reaction zone, uniformity of flue gas temperature, normal flue gas temperature variation with load, residence time, distribution and mixing of ammonia/urea into the flue gases, initial NOx concentration, and heater configuration.
Q7: What is the capital cost advantage of using ureabased NOx reduction systems compared to ammoniabased systems?
A7: Although ureabased systems have slightly higher capital costs, they have the least operating cost compared to ammoniabased NOX reduction systems.
Q8: How does the penetration of ureabased ammonia compare to ammoniawater reagent in terms of reaction kinetics and mass transfer?
A8: The penetration of ureabased ammonia is far deeper into the injection area than that of ammoniawater reagent due to the reaction kinetics of urea, resulting in better efficacy of reaction and higher NOx reduction efficiency.