In this article,the new structure used in the design of the internal components in large atmospheric pressure tower was introduced,including liquid descending plate outlet,fluid guide pipe connecting the four spillways tray and double spillways tray.

Design of atmospheric tower for refining crude oil with high sulfur and high acid value;

The analysis of corrosion in atmospheric tower in SINOPEC Luoyang Petrochemical Complex concluded that the corrosion was caused by increasing amount of sulfur in crude oil,intensified impingement,improper material selection and aging of equipment etc.

The failure tree for atmospheric tower is established with deductive method based on the theory of failure tree analysis.

Analyze how can lower the product acidity in operation of alcohol distillation,operate the pressure column & atmospheric column & how can solve the problem of waste water,and definitely put forward the resolvent.

The process flow , main equipment and existing problems in the system of methanol unit purified by 3 columns are introduced and the operation experience of pressurized column and atmospheric column is summarized.

Operating data of atmospheric column obtained from a certain refinery were used to establish modeling among flash point,ASTM-D86 data and standard relative density.

Multi-objective optimization of industrial crude distillation unit based on HYSYS and NSGA-Ⅱ;

The PSONN is applied to construct a practical soft-sensor modeling of gasoline endpoint of crude distillation unit.

In accordance with that on-line specific gravity quality instrument of aviation kerosene in atmospheric distillation tower exists the shortcoming of long time delay and easy trouble, the on line estimation of aviation kerosene specific gravity based on diagonal recurrent neural network is proposed in this paper.