Modeling, design and operation of pilot plant for two-stage oxidation of methanol into formic acid

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• 作者：I.A. Zolotarskii ; T.V. Andrushkevich ; G.Ya. Popova ; S. Stompel ; V.O. Efimov ; V.B. Nakrokhin ; L.Yu. Zudilina ; N.V. Vernikovskaya
• 关键词：Formic acid production ; Tubular reactor ; Modeling ; Pilot plant
• 刊名：Chemical Engineering Journal
• 出版年：15 February, 2014
• 年：2014
• 卷：238
• 期：Complete
• 页码：111-119
• 全文大小：1816 K

文摘

The new technology of formic acid production from methanol is developed. Methanol oxidation into formaldehyde in a tubular reactor with iron-molybdenum catalyst is carried out at the first stage similarly to existing technology of formalin production, Formaldehyde is oxidized into formic acid in a tubular reactor with an appropriate vanadia-titania catalyst at the second stage. Mathematical modeling of the process second stage is performed on basis of the detailed kinetic model. Design parameters and performance of large-scale multitubular reactors were determined and reproduced in the constructed pilot plant with a capacity of 2-3 kg of formic acid per hour. Process feasibility was confirmed by operation of the pilot plant. Formic acid yield at the second stage was shown to be 87-88%. The technology is ready for further scaling up to industrial level.