Method and apparatus for capturing carbon dioxide and producing sulfuric acid by sodium bisulfate

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11230472
APP PUB NO 20210371282A1
SERIAL NO

16932718

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention refers to the field of flue gas purification, which discloses a method and apparatus for capturing carbon dioxide and producing sulfuric acid by sodium bisulfate; using a three-format electrodialysis apparatus to convert the desulfurized by-product NaHSO4 into H2SO4 while capturing CO2 in the flue gas in the cathode chamber. Under the action of electric field drive and ion exchange membrane, HSO4− enters the anode chamber to generate H2SO4 and is concentrated, and Na+ enters the cathode chamber to generate NaOH; the flue gas containing CO2 to be treated is introduced from the cathode chamber and absorbed by NaOH. The invention provides a simple, green, and economic proceeding method to capture the carbon dioxide in the flue gas during the comprehensive utilization of sodium bisulfate solution, which is of better environmental benefits and improvement of the flue gas treatment technology and reducing the pressure of desulfurization gypsum treatment.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
PINGXIANG HUAXING ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY CO LTDPINGXIANG CERAMIC INDUSTRY BASE XIANGDONG DISTRICT PINGXIANG JIANGXI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jia, Lijuan Pingxiang, CN 4 0
Li, Bo Pingxiang, CN 785 4905
Li, Chan Pingxiang, CN 7 9
Li, Kai Pingxiang, CN 391 5044
Ning, Ping Pingxiang, CN 25 2
Qu, Guangfei Pingxiang, CN 2 0
Song, Xin Pingxiang, CN 47 144
Wang, Chuan Pingxiang, CN 148 917
Wang, Xia Pingxiang, CN 102 1254
Xie, Ruosong Pingxiang, CN 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jul 25, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 25, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 25, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00