C2He is sent, together with 30% excess air, as fresh feed (F1) to a plant, where, after mixing with the recycle stream (R), it forms the feed (F2) to the reactor unit (RE1). The following reaction takes place in the reactor: C2H6 +02 (CH2)20+H2O The product of the reactor (M1) is sent to a membrane unit where all the (CH2)2O is recovered in a product stream P1. The permeate is sent to a condenser to recover 100% of the water in stream W. The rest leaves the condenser in stream B. A quarter (i.e., 25 wt.%) of stream B exits as a purge stream (P2) while the remainder makes up the recycle stream (R). It is further known that there is a flow rate of 90 kg/br of nitrogen (N2) in the purge stream, and that the total overall CaHo conversion for the plant is 60%. 1.) Sketch the flow diagram of the plant and label all the streams. 2.) Calculate the mass flow rate (in kg/h) of the individual components in the fresh feed stream (F1) as well as the total mass flow rate (in kg/h) of F1. 3.) Calculate the mass flow rate (in kg/h) of the individual components in streams P1, P2, B, W and R as well as the total mass flow rate (in kg/h) of P1, P2, B, W and R.
C2He is sent, together with 30% excess air, as fresh feed (F1) to a plant, where, after mixing with the recycle stream (R), it forms the feed (F2) to the reactor unit (RE1). The following reaction takes place in the reactor: C2H6 +02 (CH2)20+H2O The product of the reactor (M1) is sent to a membrane unit where all the (CH2)2O is recovered in a product stream P1. The permeate is sent to a condenser to recover 100% of the water in stream W. The rest leaves the condenser in stream B. A quarter (i.e., 25 wt.%) of stream B exits as a purge stream (P2) while the remainder makes up the recycle stream (R). It is further known that there is a flow rate of 90 kg/br of nitrogen (N2) in the purge stream, and that the total overall CaHo conversion for the plant is 60%. 1.) Sketch the flow diagram of the plant and label all the streams. 2.) Calculate the mass flow rate (in kg/h) of the individual components in the fresh feed stream (F1) as well as the total mass flow rate (in kg/h) of F1. 3.) Calculate the mass flow rate (in kg/h) of the individual components in streams P1, P2, B, W and R as well as the total mass flow rate (in kg/h) of P1, P2, B, W and R.
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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Transcribed Image Text:C2H6 is sent, together with 30% excess air, as fresh feed (F1) to a plant, where, after mixing with the
recycle
stream (R), it forms the feed (F2) to the reactor unit (RE1). The following reaction takes place in the
reactor:
C2H6 +02 -(CH2)20+H2O
The product of the reactor (M1) is sent to a membrane unit where all the (CH2)2O is recovered in a
product
stream P1. The permeate is sent to a condenser to recover 100% of the water in stream W. The rest
leaves
the condenser in stream B. A quarter (i.e., 25 wt.%) of stream B exits as a purge stream (P2) while the
remainder makes up the recycle stream (R). It is further known that there is a flow rate of 90 kg/br of
nitrogen
(N2) in the purge stream, and that the total overall C2H6 conversion for the plant is 60%.
1.) Sketch the flow diagram of the plant and label all the streams.
2.) Calculate the mass flow rate (in kg/h) of the individual components in the fresh feed stream (F1) as
well
as the total mass flow rate (in kg/h) of F1.
3.) Calculate the mass flow rate (in kg/h) of the individual components in streams P1, P2, B, W and R as
well
as the total mass flow rate (in kg/h) of P1, P2, B, W and R.
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