US2017354914 (A1)

Use of clinker kiln dust for gas scrubbing

(22) 28.08.2017

(43) 14.12.2017

(57) Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are disclosed. The methods and apparatus include introducing bypass dust produced during production of clinker into one or more locations between the preheater exhaust and the inlet to a dust filter including into a gas conditioning tower. Total bypass dust separated from the kiln exhaust gas may be used. The bypass dust can be separated into a fine and coarse portions. Fine or total bypass dust can be mixed with water to form a bypass dust slurry that can be introduced into the gas conditioning tower. Bypass dust can be used to reduce the content of acidic pollutants such as hydrogen chloride HCl and sulfur oxides SOx from clinker kiln emissions.

(71) CalPortland Company

Related articles:

Issue 7-8/2017 US 2017/0136409 A1

Use of clinker kiln dust for gas ­scrubbing

(22) 19.01.2017 (43) 18.05.2017 (57) Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are disclosed. The methods and apparatus include...

more
Issue 9/2018 EP3331834 (A1)

Use of clinker kiln dust for gas scrubbing

(22) 05.08.2016 (43) 13.06.2018 (57) Summary of the corresponding patent WO2017024247 (A1): Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are...

more
Issue 7-8/2018 US2018127312 (A1)

Method and apparatus for producing cement clinker

(22) 08.01.2018 (43) 10.05.2018 (57) In methods of and/or plants for manufacturing cement clinker, the amount of chloride bypass exhaust gas 79 can be substantially decreased, when using previously...

more
Issue 11/2017 WO 2017/158177 A1

Cement clinker line and a method for operating a cement clinker line

(22) 17.03.2017 (43) 21.09.2017 (57) A method for manufacturing clinker comprising sintering raw meal in a kiln to clinker, preheating the raw meal in a preheater using a main flue gas stream from the...

more
Issue 10/2018 PL3219688 (T3)

Cement clinker line and a method for operating a cement clinker line

(22) 18.03.2014 (43) 31.07.2018 (57) Summary of the corresponding patent EP3219688 (A1): A method for manufacturing clinker comprising sintering raw meal in a kiln to clinker, preheating the raw meal...

more