Electrolyte NRTL (CO₂–DEA) property package

Same speciation model with diethanolamine (DEA) constants — a canonical secondary gas-treating amine. Its protonation anchor is genuinely cited (pKa 8.883, Bower-Robinson-Bates 1962/NBS); the carbamate stability is a disclosed engineering estimate calibrated to DEA's cited operating range, so treat capacity as screening-grade and basicity as cited-grade.