I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment uncategorized

Monetizing coke-oven gas, while capturing CO2

By Gerald Ondrey |

A process that converts process gases, generated during the production of metallurgical coke, into marketable chemicals is being developed in a pilot plant installed on the works site of thyssenKrupp Steel Europe AG (www.thyssenkrupp-steel-europe.com) in Duisburg, Germany. The process is being developed in a collaborative project by the Schwelgern coke plant (KBS), plant-engineering company thyssenKrupp Industrial Solutions AG (Essen; www.thyssenkrupp-industrial-solutions.com) and Berlin Technical University (TU Berlin; all Germany; www.tu-berlin.de). In the conventional treatment of coke-oven gas (COG), H2S and NH3 are scrubbed from COG with aqueous ammonia solutions (de-acidified water, stripped water) by the CyclaSulf process. The rich absorption solution (enriched water) is pumped to the regeneration, H2S/NH3-desorption column. The head product of the H2S/NH3-desorption is acid gas, which is rich with H2O, NH3 (20–30 vol.%), CO2 (15–25 vol.%) and H2S. The rate of H2O, NH3 and CO2 in acid gas is nearly equimolar, which makes it possible to synthesize crystalline ammonium bicarbonate. In the new, patented process (flowsheet), the acid gas from the CyclaSulf process is first compressed (by acid-gas-condensate jet flow) in…
Related Content
Focus on Air Pollution Control
These ceramic filters have catalysts built-in The BisCat filter system (photo) combines the three process stages of de-dusting, separation of…

Andritz

Minimizing particle breakage and mother liquor residue in technical salts production

Technical salts and crystallization products have found a broad spectrum of different applications in the industrial sector in the past decades. One of the most frequently used salts is sodium chloride...

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
Expectations are shifting: How measurement solutions can help overcome chemical industry challenges
CoriolisMaster: The SmartSensor solution
ABB in Chemical Industry
6 benefits to expect from a measurement partner
Expect more from your measurement with ABB

View More