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Question 1 [24 Marks] material, coal is gasified with steam and oxygen and then cleaned up in the rectisol process. The cleaner synthesis gas goes to the Sasol Advanced Synthol reactors (High-Temperature Fischer Tropch Process). 1.1. Draw a well label flow diagram for the production of DO and ULO. (10) 1.2. Describe your Flow diagram in your own words. (14) Note: Do not include the Tailgas recycle Question 2 [15 Marks 2.1. Liquefied Petroleum Gas is a flammable mixture of hydrocarbon gases, most commonly propane, butane, and propylene. It is prepared by refining petroleum or "wet" natural gas. It is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil), or extracted from petroleum or natural gas streams as they emerge from the ground. Explain all the different conversion processes involved in the production of Liquefied Petroleum Gas. (11) 2.2. The more stable higher octane fuel reduces the risk of auto-igniting, allowing better performance and efficiency. Your BMW car's engine fuel has an octane number of 95. Determine the percentage of iso-octane and n-heptane in the fuel mixture. Question 3 (26 Marks