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In a process for the production of acrylic fibers by the emulsion polymer- ization of acrylonitrile, the unreacted monomer is recovered from water by distillation. Acrylonitrile forms an azeotrope with water, and the overhead product from the column contains around 5 mol percent water. The over- heads are condensed and the recovered acrylonitrile separated from the water in a decanter. The decanter operating temperature will be 20°C. Size a suitable decanter for a feed rate of 3000 kg/h.

In a process for the production of acrylic fibers by the emulsion polymer- ization of acrylonitrile, the unreacted monomer is recovered from water by distillation. Acrylonitrile forms an azeotrope with water, and the overhead product from the column contains around 5 mol percent water. The over- heads are condensed and the recovered acrylonitrile separated from the water in a decanter. The decanter operating temperature will be 20°C. Size a suitable decanter for a feed rate of 3000 kg/h.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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I need solution 10.5
Percentage by weight less than 100 70 40 20 10 A 70% recovery of the solids is required in the cyclones. For a gas flow rate of 100,000 m'/h, at the reactor conditions, determine how many cyclones operating in parallel are needed and design a suitable cyclone. Estimate the size distribution of the particles entering the filters. 10.5. In a process for the production of acrylic fibers by the emulsion polymer- ization of acrylonitrile, the unreacted monomer is recovered from water by distillation. Acrylonitrile forms an azeotrope with water, and the overhead product from the column contains around 5 mol percent water. The over- heads are condensed and the recovered acrylonitrile separated from the water in a decanter. The decanter operating temperature will be 20°C. Size a suitable decanter for a feed rate of 3000 kg/h. 10.6. In the production of aniline by the hydrogenation of nitrobenzene, the reactor products are separated from unreacted hydrogen in a condenser. The condensate, which is mainly water and aniline, together with a small amount of unreacted nitrobenzene and cyclohexylamine, is fed to a decanter to separate the water and aniline. The separation will not be complete, as aniline is slightly soluble in water, and water in aniline. A typical material balance for the decanter is as follows:
Transcribed Image Text:Percentage by weight less than 100 70 40 20 10 A 70% recovery of the solids is required in the cyclones. For a gas flow rate of 100,000 m'/h, at the reactor conditions, determine how many cyclones operating in parallel are needed and design a suitable cyclone. Estimate the size distribution of the particles entering the filters. 10.5. In a process for the production of acrylic fibers by the emulsion polymer- ization of acrylonitrile, the unreacted monomer is recovered from water by distillation. Acrylonitrile forms an azeotrope with water, and the overhead product from the column contains around 5 mol percent water. The over- heads are condensed and the recovered acrylonitrile separated from the water in a decanter. The decanter operating temperature will be 20°C. Size a suitable decanter for a feed rate of 3000 kg/h. 10.6. In the production of aniline by the hydrogenation of nitrobenzene, the reactor products are separated from unreacted hydrogen in a condenser. The condensate, which is mainly water and aniline, together with a small amount of unreacted nitrobenzene and cyclohexylamine, is fed to a decanter to separate the water and aniline. The separation will not be complete, as aniline is slightly soluble in water, and water in aniline. A typical material balance for the decanter is as follows:
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