Question

Why is it necessary to remove sulfur from petroleum products?

• A. To reduce the emission of sulfur dioxide in the exhaust fumes
• B. To increase the efficiency of automobile engines
• C. To increase the lifespan of engine silencers
• D. None of the above

Answer 1

The correct option is A

To reduce the emission of sulfur dioxide in the exhaust fumes

The purpose of removing the sulfur, and creating products such as ultra-low-sulfur diesel, is to reduce the sulfur dioxide emissions that result from using those fuels in automotive vehicles, aircraft, railroad locomotives, ships, gas or oil burning power plants, residential and industrial furnaces, and other forms of fuel combustion.
Sulfur dioxide is a gas. It is invisible and has a nasty, sharp smell. It reacts easily with other substances to form harmful compounds, such as sulfuric acid, sulfurous acid, and sulfate particles.