Crude oil is fractioned by two separating columns. The incoming crude oil is composed of, in weight fractions, \( 0.0500 \) gas, \( 0.290 \) gasoline, \( 0.120 \) kerosene, \( 0.130 \) diesel, \( 0.130 \) heating oil, \( 0.100 \) lubricating oil, and the rest solids. The crude oil is fed into the first column at \( m_{1}=1.340 \times 10^{3} \mathrm{~kg} / \mathrm{h} \), producing a stream of gas, a \( 5: 1 \) gasoline to kerosene stream, a stream containing kerosene and diesel, and a \( m_{5}=638 \mathrm{~kg} / \mathrm{h} \) stream of the bottoms. The bottoms, containing diesel, lubricating oil, heating oil, and solids, is fed into a second distillation column that separates the components into three streams. The top stream contains diesel and heating oil. The middle stream contains heating oil and lubricating oil, and the bottom stream contains the solids. To produce \( m_{7}=204 \mathrm{~kg} / \mathrm{h} \) of the stream containing heating and lubricating oil, find 1. The flow rate, \( m_{3} \), of the gasoline and kerosene stream. 2. The composition of the heating oil and lubricating oil stream. 3. The composition of the diesel and heating oil stream.
1. The flow rate, \( m_{3} \), of the gasoline and kerosene stream. 2. The composition of the heating oil and lubricating oil stream. 3. The composition of the diesel and heating oil stream. What is the flow rate, \( m_{3} \), of the gasoline and kerosene stream coming off the first column?
What is the composition of \( m_{7} \), the heating oil and lubricating oil stream coming off the second column? Theating oil \( = \) \( x_{\text {lutiricating oil }}= \) What is the composition of \( m_{6} \), the diesel and heating oil stream coming off the second column?