Kinetics of NO absorption in aqueous iron(II) bis(2,3-dimercapto-1-propanesulfonate) solutions using a stirred reactor

Journal Article · Wed May 01 04:00:00 EDT 1996 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie950655m· OSTI ID:253761

Shi, Y; Littlejohn, D; Chang, S G ^[1]

---

1. Lawrence Berkeley National Lab., CA (United States). Energy and Environment Div.

The iron(II) bis(2,3-dimercapto-1-propanesulfonate) (Fe{sup 2+}(DMPS){sub 2}) complex is a newly developed metal thiochelate for the removal of NO{sub x} from flue gas. The mass transfer and kinetics of the absorption of NO in aqueous Fe{sup 2+}(DMPS){sub 2} solutions have been studied in a stirred reactor. Factors influencing the NO absorption rate, such as pH, Fe{sup 2+}(DMPS){sub 2} concentration, and the ratio of Fe{sup 2+} to DMPS have been investigated. The forward rate constant of the Fe{sup 2+}(DMPS){sub 2}-NO complexation reaction has been determined to be 1.1 {times} 10{sup 8} L/mols at pH 7.2 and 50 C. The application is to the wet flue gas desulfurization for combined removal of NO{sub x} and SO{sub 2}.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 253761
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 5 Vol. 35; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
ABSORPTION
CHELATES
CHEMICAL REACTION KINETICS
COMBINED SOXNOX PROCESSES
CONCENTRATION RATIO
DENITRIFICATION
FLUE GAS
IRON COMPOUNDS
NITRIC OXIDE
PH VALUE
SORPTIVE PROPERTIES
SULFONATES