Distribution and influence of sulfur in the catalytic cracking production process
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The distribution and impact of sulfur in the catalytic cracking production process – welcome to lively discussions! Points are given for participating in the discussion!
Sulfur is distributed differently in heavy paraffin waxes; there is a diagram showing sulfur transfer, but unfortunately I don’t have it here!
I’m also learning about the sulfur balance throughout the entire plant right now; I’m waiting for experts to provide answers.
Sulfur distribution is closely related to the properties of the feed oil, the degree of reaction, etc., and cannot be generalized. Below is the sulfur balance under typical operating conditions in our catalytic reforming unit: gas sulfur accounts for 44% of the total sulfur in the feed, 6% in sulfur-containing wastewater, 4% in catalytic gasoline, 21% in catalytic diesel, 13% in slurry, and 12% in coke. Based on the sulfur transfer coefficient, gases and wastewater account for 50% of the total sulfur; gasoline represents 5–10% of the sulfur in the feedstock. The MIP process results in a lower value, with a transfer coefficient of 1.0 for diesel, 1.5 for oil slurry, and around 1.3 for coke.