US 2021/0339192 A1

A method and apparatus for reduction of HCl emission from cement plants using cement raw meal as absorber

(22) 29.08.2019

(43) 04.11.2021

(57) The invention relates to a method for reduction of HCl emission from a cement plant based on a treatment of a preheater (1) and/or bypass gas stream, characterized in that a cement raw meal, as a HCl absorber, is dispersed in the gas stream(s) from which HCl is to be removed; the cement raw meal is introduced from a raw mill (6) and/or a silo (8) into a pipe with a up going gas flow; the pipe being arranged in fluid communication at a point after a gas conditioning tower (7) and/or before a particle filter unit (5) and/or in a by-pass line before particle filter (4).

(71) FLSmidth A/S, Valby (DK)

x

Related articles:

Issue 2021-6 EP3843878 (A1)

A method and apparatus for reduction of HCI emission from cement plants using cement raw meal as absorber

(22) 29.08.2019 (43) 07.07.2021 (57) Summary of the corresponding patent WO2020044288 (A1): The invention relates to a method for reduction of HCl emission from a cement plant based on a treatment of...

more
Issue 2020-5-6 WO 2020/044288 A1

A method and apparatus for reduction of HCI emission from cement plants using cement raw meal as absorber

(22) 29.08.2019 (43) 05.03.2020 (57) The invention relates to a method for reduction of HC1 emission from a cement plant based on a treatment of a preheater (1) and/or bypass gas stream, characterized...

more
Issue 2022-1 WO 2021/204549 A1

Method and device for the production of cement clinker

(22) 25.03.2021 (43) 14.10.2021 (57) The invention relates to a method for producing cement clinker, said method comprising the steps of: – preheating raw meal in a preheater (12), – calcining the...

more
Issue 2022-1 WO 2021/204725 A1

Method for calcining lime or dolomite and annular shaft furnace used

(22) 02.04.2021 (43) 14.10.2021 (57) Method for calcination in an annular shaft furnace comprising a supply of material to be calcined at the top of an annular space (3) of the furnace into which the...

more
Issue 2019-9 PL3219689 (T3)

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

(22) 18.03.2016 (43) 28.06.2019 (57) Summary of the corresponding patent EP3219689 (A1): A method for manufacturing clinker comprising sintering raw meal in a kiln to clinker, preheating the raw meal...

more