石油加工常识(Common sense in petroleum processing)

石油加工常识（Common sense in petroleum processing）

What is paraffin base crude?

The K value between 12.1 to 13, containing more than 50% alkanes, low density, high wax content, less sulfur and resin, the original production of straight-run gasoline octane number is low, the high octane sixteen diesel, lubricating oil production class better viscosity temperature properties, but the dewaxing of the load, and the heavy fraction the residue containing heavy metals, is a good raw material for cracking

What is intermediate base crude?

K values range from 11.5 to 12.1 and range between paraffinic and naphthenic crude oils

What is called naphthenic crude oil?

Containing cycloalkanes and aromatics are, high density, low pour point, general sulfur, colloid and asphaltene more

What is the role of the three curves of crude oil?

EN's distillation is mainly used to characterize the quality of products. Boiling point distillation is mainly used for characterization of roommate fraction. Equilibrium vaporization is mainly used in determining the vaporization rate in petroleum processing

What crude oil does Daqing crude belong to?

Low sulfur paraffin base crude oil, the main characteristics of high wax content, high pour point, asphaltene colloid heavy metal content sulfur content is low

What are the characteristics of the primary processing products of Daqing crude oil?

Initial distillation to 200, straight gasoline gasoline octane value is low, the density is large, sulfur content, gum content and carbon residue higher, light fraction of crude oil content is less

What crude oil does Shengli crude belong to?

Shengli crude oil is the middle base crude containing sulfur. The sulfur content is about 1%, the density is large, the sulfur content, the gum content and the carbon residue are higher, but the light fraction of the crude oil is less

What are the characteristics of the primary processing products of Shengli crude oil?

The octane number of straight run gasoline is 47, and the initial distillation is 130. The content of aromatics in the distillate is high, which is a good material for reforming,

Aviation kerosene distillate has high density, low crystallization point, high aromatics content, poor combustion performance, low viscosity index of dewaxing oil of vacuum distillate oil, and good viscosity and temperature of vacuum residuum

What are flash distillation, simple distillation and distillation?

Flash evaporation: the feed is heated in some way to partially vaporized at a certain temperature and pressure, and two phases are separated to produce gas-liquid two-phase products. Simple distillation: the liquid mixture is heated in a distillation kettle, under certain pressure, when the temperature reaches the bubble point temperature of mixture, liquid vaporization, steam generated by the steam generating trace, was immediately drawn after cooling, collected at the same time to continue to produce liquid heating, steam, and lead. Distillation: a multistage separation process that involves simultaneous partial vaporization and partial condensation, thus allowing the mixture to be almost completely separated

What are the distillation curves, the boiling point, the distillation curve, and the equilibrium vaporization curve?

EN's distillation curve: the distillation temperature is plotted on the distillate volume fraction, and the boiling point distillation curve is taken at the distillation temperature

What's the effect of the presence of water vapor on the vaporization of oil?

Reduce the partial pressure of oil and gas

Why do people in water vapor distillation process?