Keeping close to the market, Yangzi Petrochemical's refined oil realizes optimization and efficiency increase

China Petrochemical News Network reported this year, in response to the complex situation of the oil product market, Yangzi Petrochemical has stepped up the rectification of hidden dangers to consolidate the stable operation of the oil refining unit; on the other hand, it closely monitors changes in market demand, optimizes and adjusts processing routes, and increases production of gasoline, asphalt, etc.
High value-added products, reduce jet fuel, and make every effort to improve overall efficiency
.

From January to July, the company produced 3.
336 million tons of refined oil
.

Among them, gasoline output reached 1.

Increase hidden dangers to ensure stable production

On May 2, when the Yangzi Petrochemical Refinery carried out a special equipment safety operation, it was discovered in time that the middle tray of the feed tower of the 5300 diesel hydrogenation unit desulfurization stripper was seriously corroded, and an unplanned shutdown was successfully avoided
.

In order to ensure the safe production of the plant, the Yangzi Petrochemical Refinery has carried out special investigations of hidden dangers, focusing on the "special improvement and improvement of production safety" and the "five inspections and five stricts" to ensure safety
.

The factory organized and carried out process safety, production operation, project engineering and other investigation actions, and re-investigated 271 process changes in the past 5 years.

The refinery also learned from accidents in the industry and determined the opening of all instrument root valves at the site to ensure that the opening of 100% of the instrument root valves at the installation site was controlled at about one-third
.

Comprehensive and strict alarm management, tighten the alarm management authority, and re-examine the compliance of the alarm value list of each device with the DCS, and discover device abnormalities in time and close-loop management

They set up training courses to improve the ability of cadres to perform their duties, organized all management personnel to collectively learn various safety systems, and ensure that the management process has laws to follow; give full play to the role of team leaders as a bridge, carry out safety rotation training for team leaders, and convey the severe safety situation and Strict management requirements, comprehensively enhance the safety awareness of team leaders; strictly implement measures such as "handover thinking", "class safety", and make full use of opportunities such as early adjustment meetings, handovers, and deputy classes to promote the company's various systems and learn from Lessons learned from accidents always remind employees of the importance of safe production
.

Organize and carry out regular learning of basic-level staff's operating skills and two regulations and one card, and regular examinations to test the learning effect

　　Through a series of training and learning, the refinery has strengthened the safety awareness of employees and improved operational skills
.

　　Increasing gasoline production and reducing jet fuel

　　In response to the changes in the refined oil market since the beginning of this year, Yangzi Petrochemical has kept close to the market, adjusted its production process in a timely manner, and strived to increase the production of gasoline and other products with strong market demand, while reducing jet fuel and other products with insufficient market demand
.

　　They set up a gasoline production increase team.
In response to frequent changes in crude oil varieties and unstable nature, they formulated an optimization plan for increasing gasoline production.
According to the changes in the nature of raw materials, they implemented precise control, dynamically adjusted the gasoline dry point, and tried every means to produce more gasoline to increase profits
.

The research team also formulated operating guidelines for increasing gasoline production, organized training and learning for team personnel, and required operators to pay close attention to changes in raw material components and product quality indicators, dynamically adjust the bottom circulation ratio of the fractionation tower, and control the reflux temperature.

　　The catalytic unit of the refinery strictly controls product cutting by means of team small index competitions.
The vapor pressure and dry point of crude gasoline implement the control index upper limit jam operation to maximize the initial boiling point of catalytic diesel, reduce the overlap of gasoline and diesel, and increase gasoline.
The yield, as of the end of July, achieved about 2.
2 million yuan in efficiency through increased gasoline production
.

　　In response to insufficient jet fuel market demand, they adjusted the production plan and product distribution, optimized process parameters, increased the yield of diesel and naphtha, reduced the yield of jet fuel, and increased the yield of naphtha to 14.
8%
.

In the process of optimization and adjustment, they optimized the process flow, hierarchically controlled the quality of distillation outlets and product tanks, and increased the production of chemical light oil.

　　Seize the opportunity to increase asphalt production

　　Since May, in order to ensure the completion of asphalt loading and sales tasks, when the task is tight, Yangzi Petrochemical Refinery has used all two asphalt loading platforms and six cranes to continuously load vehicles to meet market demand
.

　　Since the beginning of this year, the demand for road asphalt has been strong and the benefits have been good
.

Yangzi Petrochemical seized the favorable opportunity to increase the total amount of road asphalt production and went all out to do a good job in asphalt production

　　In order to strictly control the quality of asphalt, they closely track changes in the properties of raw materials, understand the types and properties of crude oil, and adjust asphalt blending parameters in time
.

The atmospheric and vacuum unit closely collects production-related data on the properties of raw materials and asphalt quality, and uses the data to summarize a set of optimal operation adjustment measures

　　From January to July, Yangzi Petrochemical's asphalt output reached 608,000 tons, an increase of 55.
9% year-on-year
.
Not only did the production task exceed the plan, but it also effectively solved the problem of residual oil balance, increased the crude oil processing volume, and improved the overall profitability
.
(Tao Yan Zhou Xiaoqi)