Chapter 3, Problem 3.27P

Interpretation Introduction

(a)

Interpretation:

The production rate of solid acetaminophen $\left(\text{tonne}/\text{yr}\right)$ is to be calculated.

Concept introduction:

In a system, a conserved quantity (total mass, mass of a particular species, energy or momentum) is balanced and can be written as:

$input+generation-output-consumpumtion=accumulation$

Here, ‘input’ is the stream which enters the system. ‘generation’ is the term used for the quantity that is produced within the system. ‘output’ is the stream which leaves the system. ‘consumption’ is the term used for the quantity that is consumed within the system. ‘accumulation’ is used for the quantity which is builds up within the system.

From volumetric flowrate, mass flowrate is calculated if the density of the substance is given as:

$\stackrel{•}{m}=\stackrel{•}{V}\times \rho$   ........ (1)

Here, $\stackrel{•}{V}$ is the volume of substance per hour in ‘ $\text{L/h}$ ’, $\stackrel{•}{m}$ is the mass of the substance in ‘ $\text{kg/h}$ ’ and $\rho$ is the density of the substance in ‘ $\text{kg/L}$ ’.

Interpretation Introduction

(b)

Interpretation:

The reason on which the recovery of the stream (2) containing highly dilute acetaminophen can be processed is to be stated.