Synthesis of bimannich base with thiazole and its corrosion inhibition effect on H2S and CO2 at high temperature
Zhuoke Li, Jun Cao, Ting Mao, Dan Ni
Abstract
Abstract A bimannich-based TZBM containing a thiazole ring was obtained by synthesis of mannich bases. TZBM featured a stable structure at 260 °C, and corrosion inhibition effect on carbon steel in a gas–liquid environment with Cl − + H 2 S + CO 2 at 180 °C. By analyzing the weight loss of steel exposed to different TZBM concentrations, the coverages of the inhibitor adsorbed on the surfaces were determined, and the results conformed to Langmuir isotherm model. Furthermore, the negative Gibbs free energy indicated that the adsorption was a spontaneous process. Graphical Abstract
Topics & Concepts
Gibbs free energyThiazoleAdsorptionCorrosionMannich baseLangmuir adsorption modelChemistryCarbon steelLangmuirBase (topology)Corrosion inhibitorNuclear chemistryMaterials scienceInorganic chemistryPhysical chemistryOrganic chemistryThermodynamicsPhysicsMathematical analysisMathematicsCorrosion Behavior and InhibitionCarbon dioxide utilization in catalysisCatalysis and Hydrodesulfurization Studies