Acid Gas Removal
ProTreat’s original focus was on acid gas removal using generic amines either singly, or in blends of up to three amines.
Primary, secondary and tertiary amines are: MEA, MMEA, TEA, DGA®, ADEG, DEA, MDEA, DIPA, AMP, Piperazine. These components were gradually expanded to include FLEXSORB-SE® and FLEXSORB-SE PLUS® components, SELEXOL (dimethyl ether of polyethylene glycol), Genosorb 1753, sodium glycinate, potassium dimethyl glycinate, ammonia, potassium carbonate, caustic soda, caustic potash, glycols (MEG, DEG, TEG), plus CCS, Ion Engineering, and CSIRO solvents for carbon capture and the full spectrum of INEOS* GAS/SPEC*, DOW UCARSOL™ and Eastman AdapT® solvents.
Heat Stable Salts (HSSs) are contaminants that can have a significant effect on the performance of amine solvents. ProTreat simulates the effect of each HSS, taking account of its valance and the extent of dissociation of each HSS in the solvent. ProTreat also accurately simulates the effect of HSSs on the stripping of acid gases from amine-based solvents (HSSs can act as so-called stripping promoters). ProTreat can also simulate acid gas removal by seawater, an application of interest in the removal of SO2 and CO2 from stack gas emissions produced by marine shipping.
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HSS Contaminants |
Seawater Components |
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Phosphoric Acid |
Bromide |
Lactate |
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Sulfate Ion |
Chloride |
Butyrate |
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Thiosulfate Ion |
Fluoride |
Lithium |
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Oxalate Ion |
Nitrate |
Sodium |
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Sulfite Ion |
Nitrite |
Potassium |
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Glycolate Ion |
Iodide |
Magnesium |
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Propionate on |
Borate |
Manganese |
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Acetate Ion |
Citrate |
Calcium |
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Thiocyanate Ion |
Malonate |
Copper |
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Formate Ion |
Succinate |
Zinc |
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Strontium |
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