Premium
H 2 S Reactive Absorption from Off‐Gas in a Spray Column: Insights from Experiments and Modeling
Author(s) -
Bashipour Fatemeh,
Khorasani Saied Nouri,
Rahimi Amir
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500233
Subject(s) - data scrubbing , response surface methodology , absorption (acoustics) , chemistry , analytical chemistry (journal) , chromatography , materials science , waste management , engineering , composite material
H 2 S removal from an off‐gas stream was performed in a spray column by H 2 S reactive absorption into a NaOH solution. The individual and interactive effects of three independent operating variables on the percentage of absorbed H 2 S were investigated: the initial pH of the scrubbing solution, the initial scrubbing solution temperature, and the volumetric liquid‐to‐gas ratio. The optimum operating variables were determined by response surface methodology (RSM) attaining a percentage of absorbed H 2 S of 98.7 ± 0.2 %. Additionally, the process performance was modeled by an artificial neural network (ANN) to predict the percentage of absorbed H 2 S. The results showed that the experimental data agreed better with the ANN model than with the RSM results.