The high-pressure synthesis of ammonia is known as the Haber process and can be written as: 3 H2 + N2 = 2 NH3 The reaction is an equilibrium one that results in a mixture of product (NH3) and unreacted reactants (H2 and N2). The production plant includes a splitter that separates perfectly ammonia from unreacted nitrogen and hydrogen. The unreacted N2 and H2 are recycled to the reactor with additional fresh feed. The fresh feed contains N2 and H2 in the stoichiometric ratio. The extent of reaction depends on the operating conditions: at 600 K and 300 bar and when the feed to the reactor is 80 moles/hour, the moles of NH3 generated in the reactor per unit of time are 34.50 moles/hour.
The high-pressure synthesis of ammonia is known as the Haber process and can be written as: 3 H2 + N2 = 2 NH3 The reaction is an equilibrium one that results in a mixture of product (NH3) and unreacted reactants (H2 and N2). The production plant includes a splitter that separates perfectly ammonia from unreacted nitrogen and hydrogen. The unreacted N2 and H2 are recycled to the reactor with additional fresh feed. The fresh feed contains N2 and H2 in the stoichiometric ratio. The extent of reaction depends on the operating conditions: at 600 K and 300 bar and when the feed to the reactor is 80 moles/hour, the moles of NH3 generated in the reactor per unit of time are 34.50 moles/hour.
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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The high-pressure synthesis of ammonia is known as the Haber process and can be written as:
3 H2 + N2 = 2 NH3
The reaction is an equilibrium one that results in a mixture of product (NH3) and unreacted reactants (H2 and N2). The production plant includes a splitter that separates perfectly ammonia from unreacted nitrogen and hydrogen. The unreacted N2 and H2 are recycled to the reactor with additional fresh feed. The fresh feed contains N2 and H2 in the stoichiometric ratio.
The extent of reaction depends on the operating conditions: at 600 K and 300 bar and when the feed to the reactor is 80 moles/hour, the moles of NH3 generated in the reactor per unit of time are 34.50 moles/hour.
A schematic of the process is given below.
Determine the fluxes and compositions of all streams (Total molar flow rate (mol/h), Molar flow rate H2 (mol/h), Molar flow rate N2 (mol/h), Molar flow rate NH3 (mol/h)).
Transcribed Image Text:Recycle
4
p
Fresh Feed
Feed to the Reactor
i
Reactor
1
2
t
e
5
NH3
3.
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