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1. (WO2018185328) PROCESS FOR MANUFACTURING A SORBENT FOR A FLUE GAS TREATMENT PROCESS, SORBENT AND USE OF SAID SORBENT IN SUCH FLUE GAS TREATMENT PROCESS

Pub. No.:    WO/2018/185328    International Application No.:    PCT/EP2018/058939
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Sat Apr 07 01:59:59 CEST 2018
IPC: B01J 20/04
B01J 20/08
B01J 20/10
B01D 53/50
C04B 2/06
C04B 2/08
Applicants: S.A. LHOIST RECHERCHE ET DEVELOPPEMENT
Inventors: LORGOUILLOUX, Marion
MAAZOUN, Mehdi
NYSSEN, Olivier
HEISZWOLF, Johan
Title: PROCESS FOR MANUFACTURING A SORBENT FOR A FLUE GAS TREATMENT PROCESS, SORBENT AND USE OF SAID SORBENT IN SUCH FLUE GAS TREATMENT PROCESS
Abstract:
The present invention is related to a process for manufacturing a sorbent suitable for a use in a circulating dry scrubber device comprising the steps of : providing quicklime and water in an hydrator; slaking said quicklime via a non- wet route in the hydrator; collecting a lime based sorbent at an exit of the hydrator. The process is characterized in that it comprises a further step of adding at least a first additive comprising: a compound comprising silicon, and/or, a compound comprising aluminum, and/or a compound comprising silicon and aluminum before or during said slaking step, at a molar ratio between silicon or aluminum or a combination thereof and the calcium provided to said hydrator equal to or below 0.2 and equal to or above 0.02. In some other aspects, the present invention is related to a sorbent, a premix, and a flue gas treatment process.