Chapter 4, Problem 4.72P

Interpretation Introduction

(a)

Interpretation:

The feed rate of air to the Claus plant in $\text{kg}/\text{kg coal}$ is to be determined.

Concept introduction:

Based on the law of conservation of mass, stoichiometry is the calculations of reactants and products in a chemical reaction.

Stoichiometric coefficients are the number that appears before any component in a chemical reaction equation. It describes the stoichiometry of a chemical reaction.

Number of moles $\left(n\right)$ of any substance is calculated by the formula,

$n=\frac{m}{\text{MW}}$   ........ (1)

Here, $m$ is the mass of the substance and $\text{MW}$ is its molecular weight.

Moles of a species $\left(n_i\right)$ in a mixture is calculated as:

$n_i=x_i\times n$   ....... (2)

Here, $x_i$ is the mole fraction of the species $i$ and $n$ is the total moles of the mixture.

Interpretation Introduction

(b)

Interpretation:

Any environmental concerns associated with the products of the Claus plant are to be listed.