maintained at appropriate temperatures. the crude is heated in a furnace, as shown at the left of the sketch. the boiling process produces a residue which is very dense as the result of having lost the lighter parts. this high-density remainder has much the same hydrocarbon make up as the lighter fractions...
maintained at appropriate temperatures. the crude is heated in a furnace, as shown at the left of the sketch. the boiling process produces a residue which is very dense as the result of having lost the lighter parts. this high-density remainder has much the same hydrocarbon make up as the lighter fractions...