Methane and oxygen react in the presence of a catalyst to form formaldehyde. CH + O2 - НСНО + Н,О H2O

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 and Oxygen Reaction to Form Formaldehyde**

Methane and oxygen react in the presence of a catalyst to form formaldehyde according to the following reaction:

\[ \text{CH}_4 + \text{O}_2 \rightarrow \text{HCHO} + \text{H}_2\text{O} \]

A parallel reaction also occurs, where methane is oxidized to carbon dioxide and water:

\[ \text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O} \]

The feed to the reactor contains equimolar amounts of methane and oxygen.

The fractional conversion of methane is 0.90, and the fractional yield of formaldehyde is 0.855.

**Questions:**

1. What is the mol percent of formaldehyde in the reactor output?
   - [Text Box for Answer]

2. What is the selectivity of formaldehyde synthesis relative to carbon dioxide synthesis?
   - [Text Box for Answer]
Transcribed Image Text:**Methane and Oxygen Reaction to Form Formaldehyde** Methane and oxygen react in the presence of a catalyst to form formaldehyde according to the following reaction: \[ \text{CH}_4 + \text{O}_2 \rightarrow \text{HCHO} + \text{H}_2\text{O} \] A parallel reaction also occurs, where methane is oxidized to carbon dioxide and water: \[ \text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O} \] The feed to the reactor contains equimolar amounts of methane and oxygen. The fractional conversion of methane is 0.90, and the fractional yield of formaldehyde is 0.855. **Questions:** 1. What is the mol percent of formaldehyde in the reactor output? - [Text Box for Answer] 2. What is the selectivity of formaldehyde synthesis relative to carbon dioxide synthesis? - [Text Box for Answer]
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