Application of a contact vortex condenser to absorb methanol from a contact gas

Abstract

The absorption of methanol from a contact gas in the production of technical formalin has been considered. The model of a conventional process flow sheet for absorbing methanol from a contact gas has been constructed using computer-aided modeling. The empirical coefficients used in the NRTL and Lee–Kesler models were determined. The amount of methanol in the absorption gases utilized by combustion in a conventional process flow sheet has been determined. The amounts of emissions in the case of an additional condensation stage and experimental and calculated data on the process have been compared. A method for minimizing toxic emissions that enables one tom eliminate the environmental load and increase energy and resource conservation has been proposed. The operational conditions of an absorber at a 22% increase in capacity have been considered.