Baling Petrochemical Company Strictly Control the Process and Do a Good Job in Quality Management

News from Sinopec News Network Since the beginning of this year, Baling Petrochemical has firmly established the policy of seeking survival by quality and seeking development by quality.
It has worked hard to improve product quality and made new articles.
From January to August this year, the company's refined product quality qualification rate Up to 100%
.

"Find faults" and grasp quality

On September 8, Chen Qiuling, an on-duty employee at the raw material station of the Baling Petrochemical Analysis and Inspection Center, conducted daily inspections on a truck of ethylbenzene, the raw material produced in the factory.
When processing the spectrum, it was found that an unknown peak appeared in the spectrum with a content of 150 mg.
/Kg, which is more than 145 mg/kg higher than before
.

She immediately notified the sampling team and re-sampling for review.
One hour later, there were still unknown peaks in the spectrum of the review sample
.

Chen Qiuling immediately reported to the technicians of the raw material station.
The technicians repeatedly qualitatively analyzed the impurities in the samples by GC-MS and judged them as ester impurities, and at the same time reflected this situation to the production department
.

The production department immediately started to search for the source of the unknown peak, and contacted the refining department to actively negotiate and dispose of it.
By strengthening the process and product quality monitoring during the production process, the impurity content of the raw materials was reduced as much as possible to prevent the impact on product quality
.

"Prescribe the right medicine" to ensure quality

"This is the latest analysis data.
The salt content after desalination is a bit too high and needs to be adjusted!" On September 7, Kuaibo, the team leader of the fourth shift of the Baling Petrochemical Refining Unit, answered the phone while instructing his colleagues to adjust the process parameters
.

Recently, the Baling Petrochemical refining unit has a relatively high processing ratio of Karen and Baihu oil.
In view of the high sulfur, chlorine, and salt content of Karen oil and the oily characteristics of Baihu oil's nitrogen content, the unit has established a research team to summarize the processing experience in 2019.
Preliminary predictions were made on the chlorine content of ethylene naphtha, the sulfur content of diesel fuel, and the nitrogen content of reformate, and it was estimated that the naphtha chlorine content, nitrogen content and oil sulfur content may exceed the standard risk
.

Therefore, in order to ensure the product quality of downstream customers, the device has increased the frequency of monitoring and analysis of intermediate products such as the first-class oil and process ethylene material, and focused on monitoring the sulfur, chlorine, and nitrogen content indicators of the finished tank, and analyzed and predicted in advance.
According to the judgment, appropriate adjustments should be made according to the quality of each tank, and various indicators should be controlled as low as possible to ensure that changes in the nature of crude oil do not affect the quality of users’ products
.

"Keep improving" to improve quality

"The purity of refined propylene has been steadily increased by 0.
25 percentage points year-on-year
.

　　Refined propylene is one of the main products of oil refining equipment.
It is mainly used as raw materials for the rubber department and resin department.
Due to the recent suspension of maintenance of related equipment in the rubber department, the daily surplus of refined propylene is nearly 200 tons.
The customer requested to increase the purity of refined propylene by 0.
1 More than a percentage point
.

　　In order to solve the "dilemma", the technical team of the oil refining unit carried out the "improving the purity of refined propylene".
On the one hand, it optimized the process adjustment, increased the pressure of the tower through exploration, and simultaneously fine-tuned the feed volume and return flow of the refined propylene tower to make the tower control trend.
On the other hand, the device smoothly controls indicators, actively coordinates upstream reactions, fractionation, and boiler positions to smoothly control the processing volume, catalytic hot water, and circulating water temperature, providing favorable conditions for the operation of the propylene tower
.