WO 2015/132437 A1

Method for calcination with production of pure CO₂ by means of combustion using O₂ transporters

(22) 04.03.2015

(43) 11.09.2015

(57) The aim of the method according to the invention is to produce a stream of calcinated solids rich in CaO and a pure or almost pure stream of CO₂ from a solid stream rich in CaCO₃, by means of a stream of solids heated at a very high temperature by a process of oxidation of said solids with air. The stream rich in CaO can be used to supply clinker kilns in cement works or for processes for harnessing CO₂.

(71) Consejo Superior de Investigaciones Cientificas, Serrano, 117, 28006 Madrid (ES)

Issue 1/2023 WO2022238358 (A1)

Method and installation for producing lime or dolime

(22) 10.05.2022 (43) 17.11.2022 (57) Method and installation for producing lime or dolime, comprising a calcination of calcareous or dolomitic material in contact with first fumes obtained by...

Issue 11/2014 OTTO-VON-GUERICKE UNIVERSITY MAGDEBURG/GERMANY

Energy consumption and CO2 content in the flue gas of normal shaft kilns | Part 1: Influence of the air excess number

1 Introduction The so-called multi-fuel-fired normal shaft kiln (NSK) is one of the oldest types of lime shaft kiln, in which burnt lime is produced from limestone by expelling the carbon dioxide...

Issue 09/2014 KLINE CONSULTING

Cement and CO2: What’s happening?

1 Introduction The majority (about 60?%) of the CO2 emitted from a modern cement plant comes from the calcination of limestone. The remainder comes primarily from the fuel combustion required to drive...

Issue 1/2022 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...

Issue 12/2019 EP3548428 (A1)

Method for the production of a syngas from a stream of light hydrocarbons and from combustion fumes from a cement clinker production unit

(22) 06.11.2017 (43) 09.10.2019 (57) Summary of the corresponding patent FR3059315 (A1): Process for producing a synthesis gas containing CO and H2 from a light hydrocarbon stream and combustion fumes...

ZKG 11/2015