China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Shaobing Wang

Shuandi Hou

Junyi Mao

Xiaojin Tang

Zhanzhu Zhang

Hongliang Qu

Lifeng Hu

Tao Huang

Kejia Xu

Zhenxing Zhu

Qing Yuan

Tongwang Zhang

Ya Qin

The present invention relates to a method for obtaining a fraction oil yield from petroleum hydrocarbons in a distillation column, wherein said distillation column comprises a fractionation stage, a vaporization section and a stripping stage from the top to the bottom of the distillation column. The method comprises preheating and sending a feedstock oil of petroleum hydrocarbons through a pressure-feeding system at a pressure of 100-1000 kPa higher than the vaporization section pressure of the distillation column, wherein said preheating is conducted in a heating furnace, wherein said heating furnace has an outlet pressure of 100-1000 kPa higher than the vaporization section absolute pressure, and an outlet temperature of 360-460&#xb0; C.

Distillation tower for improving yield of petroleum hydrocarbon distillate and feeding method thereof

The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (), wherein two ends of the riser are connected to two ends of the downcomer () via lines () and (), respectively. The riser comprises a reaction section () and a settling section () with an increased tube diameter disposed on the reaction section (). A gas outlet () exists at the top of the settling section (). Each of the downcomers () is divided into a filtrate section () and a slurry section () by filter medium (), wherein the filtrate section () is connected to a liquid outlet (); two ends of the slurry section () are respectively connected to two ends of the riser, and the filtrate region () may further be connected to a back purging system. When used in a gas-liquid-solid three phases reaction system, the reactor can realize successive separation of gas, liquid and solid particles in slurry, and realize the back purging regeneration of filter tubes without influencing the reaction processes. In addition, said reactor has the advantages of high separation efficiency, simple structure, flexible and easy operation.

Slurry bed loop reactor and use thereof

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Beijing, China

Shaobing Wang