Processing

Please wait...

Settings

Settings

Goto Application

1. AU2018359259 - Method and system for recovering acidic gas

Office
Australia
Application Number 2018359259
Application Date 16.10.2018
Publication Number 2018359259
Publication Date 09.05.2019
Publication Kind B2
IPC
B01D 53/14
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
14by absorption
B01D 53/18
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
14by absorption
18Absorbing units; Liquid distributors therefor
B01D 53/52
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
48Sulfur compounds
52Hydrogen sulfide
B01D 53/62
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
62Carbon oxides
B01D 53/78
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
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
77Liquid phase processes
78with gas-liquid contact
B01D 53/96
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
96Regeneration, reactivation or recycling of reactants
CPC
B01D 53/52
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
48Sulfur compounds
52Hydrogen sulfide
B01D 53/62
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
62Carbon oxides
B01D 53/78
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
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
77Liquid phase processes
78with gas-liquid contact
B01D 53/96
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
96Regeneration, reactivation or recycling of reactants
B01J 45/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
45Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties
B01J 49/05
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
05of fixed beds
Applicants Mitsubishi Heavy Industries Engineering, Ltd.
Inventors HIRATA, Takuya
NAKAMURA, Shinji
OKAMOTO, Shinichi
Agents Davies Collison Cave Pty Ltd
Priority Data 2017210487 31.10.2017 JP
Title
(EN) Method and system for recovering acidic gas
Abstract
(EN) Provided are a method and system for recovering an acidic gas whereby metal ions such as iron ion, a heavy metal ion, etc. in an amine absorbing solution can be quantified within a short period of time at a high accuracy and a factor which enhances the corrosive properties of the amine absorbing solution can be removed at an early stage. The method for recovering an acidic gas comprises a step for gas/liquid contacting a gas to be treated with an amine absorbing solution and thus allowing the absorbing solution to absorb an acidic gas to thereby remove the acidic gas from the gas to be treated, a step for diffusing the gas from the absorbing solution having absorbed the acidic gas to thereby regenerate the absorbing solution and, at the same time, recover the diffused gas, and an analysis step for calculating the iron ion and/or heavy metal ion concentrations in the absorbing solution, wherein the analysis step comprises: a step for controlling the pH of the collected absorbing solution until the ions are adsorbed to a chelate resin; a step for passing the absorbing solution through the resin and thus allowing the resin to adsorb the ions in the absorbing solution; a step for passing the regenerated acidic solution through the resin having adsorbed the ions and thus desorbing the ions and, at the same time, regenerating the resin to thereby give an ion-containing sample; and a step for quantifying the ions in the sample and calculating the concentrations of the ions in the collected absorbing solution on the basis of the quantification results.