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1. CN110177611 - REMOVAL OF ARSENIC FROM FLUE-GAS

Office
China
Application Number 201780074407.0
Application Date 05.12.2017
Publication Number 110177611
Publication Date 27.08.2019
Publication Kind A
IPC
B01D 53/64
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
64Heavy metals or compounds thereof, e.g. mercury
CPC
B01D 53/025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
02by adsorption, e.g. preparative gas chromatography
025with wetted adsorbents; Chromatography
B01D 53/64
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
64Heavy metals or compounds thereof, e.g. mercury
B01D 2252/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2252Absorbents, i.e. solvents and liquid materials for gas absorption
30Ionic liquids and zwitter-ions
B01D 2253/102
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2253Adsorbents used in seperation treatment of gases and vapours
10Inorganic adsorbents
102Carbon
B01D 2253/25
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2253Adsorbents used in seperation treatment of gases and vapours
25Coated, impregnated or composite adsorbents
B01D 2253/306
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2253Adsorbents used in seperation treatment of gases and vapours
30Physical properties of adsorbents
302Dimensions
306Surface area, e.g. BET-specific surface
Applicants UMICORE NV
尤米科尔公司
Inventors SCHMIDT ANNE
安妮·施密特
VERMEULEN ISABEL
伊莎贝尔·韦尔默朗
NOCKEMANN PETER
彼得·诺克曼
Agents 中原信达知识产权代理有限责任公司 11219
中原信达知识产权代理有限责任公司 11219
Priority Data 16202195.0 05.12.2016 EP
Title
(EN) REMOVAL OF ARSENIC FROM FLUE-GAS
(ZH) 从烟气中去除砷
Abstract
(EN)
The divulged invention concerns a process for the removal of arsenic oxides inprocessexhaust gases, comprising the step of passing the exhaust gases through a supported ionic liquid phase bed,characterized in that the ionic liquid comprises one or more cations from the list consisting of substituted phosphonium, ammonium, imidazolium, pyrrolidinium, and pyridinium, and one or more anions from thelist consisting of chloride, bromide, and carboxylate. Compared toa bed of active carbon, theionic liquid soaked active carbon bed according to the invention allows for an estimated doubling of thearsenic adsorptioncapacity of the bed, while also considerably enhancingthe kineticsofadsorption.

(ZH)
该发明涉及一种用于除去工艺废气中的砷氧化物的方法,所述方法包括使废气通过负载的离子液体相床的步骤,其特征在于所述离子液体包含一种或多种选自取代的、铵、咪唑、吡咯烷和吡啶的阳离子,以及一种或多种选自氯离子、溴离子和羧酸根离子的阴离子。与活性炭床相比,根据本发明的离子液体浸泡的活性炭床使得床的砷吸附容量估计加倍,同时还显著增强了吸附动力学。