Ethane (C,H,) reacts with chlorine gas (Cl,) in a continuous reactor: C„H6 +Cl½ → C,H;Cl+HCl Some of monochloroethane (C,H;Cl) is further chlorinated in an undesired side reaction: C,H¿Cl+ Cl, → C,H,Cl, + HCl Take a basis of 100 mol_C,H,Cl_produced and assume that the feed stream only contains ethane and chlorine and all chlorine is consumed (i.e., negligible Cl, in the product stream). The reactor is designed to have a 15% conversion of ethane and a C,H;Cl to C,H,Cl, molar ratio of 14 in the product stream. (a) Plot a diagram illustrating the process. (b) What is the limiting reactant? What is the excess reactant? What is the % excess of the reactant that is fed in excess to the reactor? (c) Calculate the molar ratio between Cl, and C,H, in the feed.

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
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Chapter1: Introduction
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**Title: Ethane Chlorination Process in a Continuous Reactor**

**Introduction:**
Ethane (\(C_2H_6\)) reacts with chlorine gas (\(Cl_2\)) in a continuous reactor:

\[ C_2H_6 + Cl_2 \rightarrow C_2H_5Cl + HCl \]

Some of the monochloroethane (\(C_2H_5Cl\)) is further chlorinated in an undesired side reaction:

\[ C_2H_5Cl + Cl_2 \rightarrow C_2H_4Cl_2 + HCl \]

**Process Details:**
- **Basis:** Consider a basis of 100 mol \(C_2H_5Cl\) produced.
- Assume the feed stream only contains ethane and chlorine, and all chlorine is consumed (i.e., negligible \(Cl_2\) in the product stream).
- The reactor is designed to have a 15% conversion of ethane and a \(C_2H_5Cl\) to \(C_2H_4Cl_2\) molar ratio of 14 in the product stream.

**Questions:**
(a) *Plot a diagram illustrating the process.*

(b) *What is the limiting reactant? What is the excess reactant? What is the % excess of the reactant that is fed in excess to the reactor?*

(c) *Calculate the molar ratio between \(Cl_2\) and \(C_2H_6\) in the feed.*

**Graph/Diagram Explanation:**
Unfortunately, a specific diagram is not provided in the image. However, to plot a diagram of the process, you may represent the reactants and their conversion to products using a flow chart. Indicate the streams for ethane and chlorine entering the reactor, show the primary reaction to form monochloroethane, and display the side reaction leading to dichloroethane. Highlight the conversion rates and product ratios.
Transcribed Image Text:**Title: Ethane Chlorination Process in a Continuous Reactor** **Introduction:** Ethane (\(C_2H_6\)) reacts with chlorine gas (\(Cl_2\)) in a continuous reactor: \[ C_2H_6 + Cl_2 \rightarrow C_2H_5Cl + HCl \] Some of the monochloroethane (\(C_2H_5Cl\)) is further chlorinated in an undesired side reaction: \[ C_2H_5Cl + Cl_2 \rightarrow C_2H_4Cl_2 + HCl \] **Process Details:** - **Basis:** Consider a basis of 100 mol \(C_2H_5Cl\) produced. - Assume the feed stream only contains ethane and chlorine, and all chlorine is consumed (i.e., negligible \(Cl_2\) in the product stream). - The reactor is designed to have a 15% conversion of ethane and a \(C_2H_5Cl\) to \(C_2H_4Cl_2\) molar ratio of 14 in the product stream. **Questions:** (a) *Plot a diagram illustrating the process.* (b) *What is the limiting reactant? What is the excess reactant? What is the % excess of the reactant that is fed in excess to the reactor?* (c) *Calculate the molar ratio between \(Cl_2\) and \(C_2H_6\) in the feed.* **Graph/Diagram Explanation:** Unfortunately, a specific diagram is not provided in the image. However, to plot a diagram of the process, you may represent the reactants and their conversion to products using a flow chart. Indicate the streams for ethane and chlorine entering the reactor, show the primary reaction to form monochloroethane, and display the side reaction leading to dichloroethane. Highlight the conversion rates and product ratios.
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