Question 1: Methane is undergoing catalytic oxidation to methanol in a reactor (CH4 + %O2 → CH3OH). The fresh feed stream is flowing into the system at a rate of 200mol/min and contains 50% methane and 50% molecular oxygen. A separator followed by a split point (splitting to recycle and outlet streams) have been added to the process to raise the overall conversion of methane to methanol to 75%. The separator removes all of the methanol product from the system, and then 80% of the remaining stream is recycled to be mixed with fresh feed stream. A partially labeled process flow diagram is shown below. 100 mol/min CH, 100 mol/min O, Reactor CH,OH A.) What is the percent excess of O2 in the feed? B.) What is the single pass conversion of methane to methanol? C.) What is the %excess of oxygen in the stream entering the reactor? Separator
Question 1: Methane is undergoing catalytic oxidation to methanol in a reactor (CH4 + %O2 → CH3OH). The fresh feed stream is flowing into the system at a rate of 200mol/min and contains 50% methane and 50% molecular oxygen. A separator followed by a split point (splitting to recycle and outlet streams) have been added to the process to raise the overall conversion of methane to methanol to 75%. The separator removes all of the methanol product from the system, and then 80% of the remaining stream is recycled to be mixed with fresh feed stream. A partially labeled process flow diagram is shown below. 100 mol/min CH, 100 mol/min O, Reactor CH,OH A.) What is the percent excess of O2 in the feed? B.) What is the single pass conversion of methane to methanol? C.) What is the %excess of oxygen in the stream entering the reactor? Separator
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
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![### Methane Catalytic Oxidation to Methanol
#### Question 1:
Methane is undergoing catalytic oxidation to methanol in a reactor according to the reaction:
\[ \text{CH}_4 + \frac{1}{2}\text{O}_2 \rightarrow \text{CH}_3\text{OH} \]
The fresh feed stream is flowing into the system at a rate of 200 mol/min and contains 50% methane and 50% molecular oxygen. A separator followed by a split point (splitting to recycle and outlet streams) has been added to the process to raise the overall conversion of methane to methanol to 75%. The separator removes all of the methanol product from the system, and then 80% of the remaining stream is recycled to be mixed with the fresh feed stream. A partially labeled process flow diagram is shown below.
#### Process Flow Diagram:
- **Fresh Feed Stream Inputs:**
- 100 mol/min \( \text{CH}_4 \)
- 100 mol/min \( \text{O}_2 \)
- **Reactor:**
- Reaction: \( \text{CH}_4 + \frac{1}{2}\text{O}_2 \rightarrow \text{CH}_3\text{OH} \)
- **Separator:**
- Removes all produced \( \text{CH}_3\text{OH} \)
- **Recycle Stream:**
- 80% of remaining stream is recycled
#### Questions:
A. What is the percent excess of \( \text{O}_2 \) in the feed?
B. What is the single pass conversion of methane to methanol?
C. What is the % excess of oxygen in the stream entering the reactor?
---
### Detailed Explanation:
1. The process flow diagram depicts:
- Input streams entering a reactor.
- Output from the reactor going into a separator where methanol (\( \text{CH}_3\text{OH} \)) is removed.
- The separated stream splits, where 80% is recycled back into the reactor input feed.
2. Calculations:
- **Percent Excess of \( \text{O}_2 \) in the Feed:**
- The stoichiometric requirement for the reaction is 0.5 moles of \( \text{O}_2 \) per mole of](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F449c359d-cb3f-4ec8-b29f-6db1108de786%2F257bcfbe-4f34-4e43-88df-787245da12c6%2Fc54wpq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Methane Catalytic Oxidation to Methanol
#### Question 1:
Methane is undergoing catalytic oxidation to methanol in a reactor according to the reaction:
\[ \text{CH}_4 + \frac{1}{2}\text{O}_2 \rightarrow \text{CH}_3\text{OH} \]
The fresh feed stream is flowing into the system at a rate of 200 mol/min and contains 50% methane and 50% molecular oxygen. A separator followed by a split point (splitting to recycle and outlet streams) has been added to the process to raise the overall conversion of methane to methanol to 75%. The separator removes all of the methanol product from the system, and then 80% of the remaining stream is recycled to be mixed with the fresh feed stream. A partially labeled process flow diagram is shown below.
#### Process Flow Diagram:
- **Fresh Feed Stream Inputs:**
- 100 mol/min \( \text{CH}_4 \)
- 100 mol/min \( \text{O}_2 \)
- **Reactor:**
- Reaction: \( \text{CH}_4 + \frac{1}{2}\text{O}_2 \rightarrow \text{CH}_3\text{OH} \)
- **Separator:**
- Removes all produced \( \text{CH}_3\text{OH} \)
- **Recycle Stream:**
- 80% of remaining stream is recycled
#### Questions:
A. What is the percent excess of \( \text{O}_2 \) in the feed?
B. What is the single pass conversion of methane to methanol?
C. What is the % excess of oxygen in the stream entering the reactor?
---
### Detailed Explanation:
1. The process flow diagram depicts:
- Input streams entering a reactor.
- Output from the reactor going into a separator where methanol (\( \text{CH}_3\text{OH} \)) is removed.
- The separated stream splits, where 80% is recycled back into the reactor input feed.
2. Calculations:
- **Percent Excess of \( \text{O}_2 \) in the Feed:**
- The stoichiometric requirement for the reaction is 0.5 moles of \( \text{O}_2 \) per mole of
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