Application of a contact vortex condenser to absorb methanol from a contact gas
Tóm tắt
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.
Tài liệu tham khảo
Akhmadeeva, L.F., Moskalev, L.N., Osipov, E.V., and Ponikarov, I.I., Description of vortex heat and mass transfer apparatuses using the CHEMCAD 5.2 simulation software, Vestn. Kazan.Tekhnol. Univ., 2012, vol. 15, no. 11, pp. 158–162.
GOST (State Standard) 1625-89: Formalin for Industrial Use. Specifications, Moscow Izd. Standartov, 1989
Plate, N.A., Osnovy khimii i tekhnologii monomerov (Foundations of Monomer Chemistry and Engineering), Moscow: MAIK, 2002
Panchenko, V.I., Magaril, Ya.F., Nazarov, A.A., Shpaner, Ya.S., and Gimranov, R.G., Aerodynamic gas gates for flare units, Chem. Pet. Eng., 2009, vol. 45, nos. 5–6, pp. 278–280.
Magaril, Ya.F., Nazarov, A.A., Shpaner, Ya.S., and Gimranov, R.G., Special torch heads, Chem. Pet. Eng., 2009, vol. 45, nos. 1–2, pp. 13–14.
GN Hygienic Regulations) 2.2.5.686-98: Threshold Limit Values (TLV) for Hazardous Substances in Workplace Areas), Moscow: Minzdrav Rossii, 1998
Renon, H. and Prausnitz, J.M., Local compositions in thermodynamic excess functions for liquid mixtures, AIChE J., 1968, vol. 14, no. 1, pp. 135–144.
Reid, R.C., Prausnitz, J.M., and Poling, B.E., The Properties of Gases and Liquids, New York: McGrawHill, 1988, 4th ed.
Lee, B.I. and Kesler, M.G., A generalized thermodynamic correlation based on three-parameter corresponding states, AIChE J., 1975, vol. 21, no. 3, pp. 510–527.
Reid, R., Prausnitz, J., and Shervood, T., The Properties of Gases and Liquids, New York: McGraw-Hill, 1977
Moskalev, L.N., Ponikarov, S.I., and Ponikarov, I.I., Experimental plant for investigation of condensation in vortex contact apparatuses, Vestn. Kazan. Technol. Univ., 2011, no. 14, pp. 235–240.
Ponikarov, I.I., Ponikarov, S.I., Alekseev, V.V., and Moskalev, L.N., RF Patent 2502929, Byull. Izobret., 2013, no. 36.