The EPC general contracting project of refining engineering is the most complex organizational form and contract implementation method of all types of refining engineering projects. As a top priority in project implementation, safety not only concerns the project itself, but also affects the long-term interests of the project enterprise in project execution, owner evaluation, market reputation, corporate image, and other aspects. The on-site safety management of the project is also an important link in whether the entire project can be smoothly promoted. Due to many uncertain factors such as multiple management interfaces, organizational levels, personnel turnover, uneven personnel quality, outsourcing of engineering services, and complex working environment, the on-site safety management risk of the project has been consistently high for many years. Combining with the experience of EPC general contracting project management in refining engineering, this paper elaborates on the characteristics and implementation difficulties of EPC general contracting project in refining engineering. It analyzes the on-site safety management of project briefly and provides targeted countermeasures.

As the most important technology of automation control, the DCS automatic control has greatly promoted the development of the chemical industry. The application of the DCS control system in chemical products is an inevitable trend, which can considerably accelerate the development of domestic chemical industry, ensure the safety of chemical production operation effectively, and reduce energy consumption in production. This paper focuses on the application problems and development trends of the DCS automation control system in the production of compound polyether, and provides reference for the automation transformation of related chemical companies.

Digital training has become a new track of corporate training with the help of Internet technology, which has advantages such as flexible geographical and time selection and more diversified digital training resources. It provides every member of the enterprise the access to learning and reduces training costs greatly. The foundation of the new track is the rational planning and utilization of the carrier function of the digital training project learning platform. There must be a systematic thinking process in the management of the digital training project, including the integrity of the design, the consistency of the operation, the objectivity of the "digital intelligence" data analysis and the rationality of the business price. Finally, this paper shares a successful digital safety training project.

With the oilfield company speeding up the new journey of secondary development, the natural gas production scale has stepped into the refined management and continued to grow. However, during the construction of the natural gas gathering and transmission pipeline, the safety risk of the natural gas gathering and transmission pipeline construction is prominent due to the weak safety management of the construction unit, the different technical quality of the construction personnel and the insufficient management and control force during the construction process. Various potential safety hazards found in the safety inspection of the natural gas gathering and transmission pipeline construction site directly exposed the serious safety risks and management loopholes in the construction process. This paper preliminarily discusses the difficulties in the construction of natural gas gathering and transportation pipelines, analyzes the hidden troubles in the construction management and finds out the risks from the root. It puts forward the countermeasures to further standardize the construction safety management of natural gas gathering and transportation pipelines.

Since the establishment of the PipeChina, it has vigorously promoted the construction of One Network in China. This paper expounds the significance of improving the safety and quality management of oil and gas pipeline engineering construction projects, summarizes the problems existing in the safety and quality management of oil and gas pipeline engineering construction projects covering low standards, old faults and bad habits, level of legal compliance management, personnel professional management ability, supervision of contractors, application of engineering management technology. It puts forward measures for improving safety and quality management of engineering construction projects in order to improve the safety and quality management of engineering construction projects and achieve high-quality development of oil and gas pipeline construction projects.

In order to explore the work safety management mode and provide new ideas and methods for the work safety management of natural gas station, the nudge theory was introduced into the work safety of natural gas station. Firstly, the factors affecting the work safety of natural gas station were discussed. Secondly, the influence of the nudge theory on people's behavior intentions in natural gas station was analyzed. Then, the work safety mode based on nudge theory was established. Finally, this mode was verified through application in a natural gas station. The results showed that the application of nudge theory has promoted the improvement of the work safety management of the station, and boosted the personnel safety awareness, and contributed to the station work safety. This can provide reference for the work safety management of other stations.

There are many types of alkylation technologies, among which the sulfuric acid alkylation process is mature and uses concentrated sulfuric acid as the catalyst. Sulfuric acid has strong corrosiveness and has special requirements for pipeline material selection. Ionic liquid alkylation is a new process technology that uses composite ionic liquids to replace traditional concentrated sulfuric acid as the catalyst. It is a new green, safe, and environmentally friendly alkylation technology. This paper introduces the special characteristics of these two alkylation technologies in pipeline material selection and pipeline piping.

As the gas produced in the retorting process of oil shale refining can be used as raw materials for gas burning devices such as the gas electric generator and gas boilers, there are certain risks of fire and explosion in the application process, which is prone to production safety accidents. The gas fire safety device can be widely used in the gas-medium combustion system, installed in the pipeline section before entering the combustion system. The installation of this device can play the role of gas fire resistance, gas leakage prevention, gas cut-off during overhaul and so forth.

In order to analyze the risk in the vicinity of the gas transmission pipeline, an individual risk calculation model is established. The model consists of two parts involving the calculation of pipeline failure frequency and the calculation of the hazardous consequences of failure. The model divides the causes of pipeline failure into six categories. The method of correcting the reference frequency is adopted to calculate the frequency of pipeline failure caused by each category of the failure causes. The calculation and analysis of hazardous consequences include four parts covering leakage rate calculation, calculation and analysis of ignition probability, fire calculation and analysis, and degree of injury. Jet fire is used to represent the hazardous consequences of pipeline leakage. Based on the calculation and analysis of the failure frequency and leakage consequences, the individual risk in the vicinity of the pipeline is calculated. Thus, whether the risk in the vicinity of pipeline is acceptable or not can be determined. Examples of risk calculation show that rupture is the main factor for risk, and it is recommended that the control of rupture-inducing factors should be strengthened.

By taking statistics of butadiene plant operation problems and analyzing the rules that cause the problems, it is found that the main problem of butadiene plant operation is butadiene polymerization. Polymerization causes are further analyzed and are discovered to be mainly the effects of oxygen, temperature, butadiene concentration, and impurities and the effect of initiators such as rust and water. By adopting anti-polymerization measures for equipment and process, optimization of anti-polymerization agent, reducing dead space of equipment and other production anti-polymerization measures, the butadiene plant has been running steadily for 4 years without being cleaned instead of the previous annual clean-up. This has helped the company to achieve better economic benefits, which is worth summarizing and promoting.

Phast-QRA software was adopted to simulate and quantitatively analyze the consequences of a flash ignition accident occurred in a closed oil storage tank at a vehicle oil transportation worksite. According to the scene at the time of the accident and the related parameters, the radius of death, serious injury and minor injury of the closed storage tanks in the event of an accident is calculated through software simulation. The paper simulates and calculates the maximum influence range and severity of the accident. It puts forward the safety technology and management suggestions and countermeasures to prevent accidents. This provides the theoretical basis for avoiding the occurrence of similar accidents and the technical support for the safe production and operation of the closed oil storage tanks.

Utilize the massive data in the oil and water well exploration and development process to analyze and identify oil and water wells with abnormal production, conduct in-depth exploration of abnormal changes, and propose targeted measures based on this to maintain stable oil field exploitation, efficient production, and maximize production benefits. of great significance. This paper uses big data analysis and neural network prediction methods, uses the measure database to perform machine learning and model training, and establishes neural network models for different production stimulation measures to form a production stimulation effect prediction and evaluation system based on static reservoir data, dynamic production data and measure plan parameters.

In recent years, the control of VOCs in the petrochemical industry has become a key focus of national environmental protection departments. Therefore, PetroChina has included the effectiveness of VOCs governance in its refining and chemical enterprises in its key environmental inspection and assessment indicators. Due to the relatively late introduction of VOCs governance design specifications and related standards in refining enterprises, different processes are used for VOCs governance in refining enterprises and the governance effects vary. This paper conducts research and analysis on the VOCs treatment process of a petrochemical enterprise's wastewater treatment plant and proposes corresponding improvement measures and suggestions. This provides technical support for the application of VOCs treatment process in the wastewater treatment plant of refining enterprises.

Aiming at the obvious problems of high H2S and combustible gas content in the electric desalting wastewater of the atmospheric and vacuum distillation units and the unstable water quality that cannot meet the standard due to the influence of oil and slug content, this paper adopts the combination of atmospheric flash evaporation and high-efficiency cyclone dissolved gas flotation (CDFU) technology routes to match the original gravity sedimentation oil-removal technology process. This effectively solves the problems of high oil content and slag content, combustible gas and hydrogen sulfide in the electric desalination wastewater. After the transformation, the petroleum content is reduced by 73.6%; COD (chemical oxygen demand) is reduced by 32.7% and the volume concentrations of H2S, combustible gas, and VOCs are reduced by 56.85%, 57.93%, and 38.25% respectively. The water quality of the electric desalting wastewater has been improved significantly, which reduces the impact on the downstream wastewater system and eliminates safety hazards.

According to the characteristics of sewage reverse osmosis concentrated water, the high efficiency biological nitrogen removal tank, ABR reaction tank and high density sedimentation tank are selected. Engineering practice indicates that the process has achieved effective removal of ammonia nitrogen, total nitrogen, COD and phosphorus by controlling the amount of carbon source dosing and DO in the high-efficiency biological denitrification tank, ABR reaction tank DO, and the amount of pharmaceutical dosing in the high-density sedimentation tank under the action of nitrification, denitrifying bacteria, special species and flocculants. And the effluent meets the special limit discharge requirements of Water Pollutant Discharge Standards for Heilonggang and Yundong River Basins. And the process has certain impact resistance load. It can adapt to the change of the raw water quality and the effluent quality remains stable. It’s worthwhile to popularize this process with low operation cost, operation safety and so forth.

This paper introduces the process flow and long-term operation data analysis of Advanced Biological Reactor (ABR) for treating ethylene high salinity wastewater and refinery FCC desulfurization wastewater. The results show that ABR technology is an advanced treatment technology for treating organic wastewater that is hard to degrade with high efficiency and low operation cost; it is especially suitable for the deep treatment of salinity wastewater which is hard to biodegrade; this technology can reduce COD in wastewater from 100mg/L to less than 30mg/L and can also remove some ammonia nitrogen; it has the advantages of few process units, compact process, stable operation, strong impact resistance and low energy consumption.

The concentration of sodium sulfide in the waste lye produced by ethylene plant was less than or equal to 1%. After removing sodium sulfide from the high-salinity water unit, it was discharged after qualified treatment in the sewage treatment plant. In 2021, due to the change of raw materials, the concentration of sulfide in the waste lye reached 2% to 3%, which exceeded the processing capacity of the high-salinity water unit and adversely affected the operation of the unit. In order to solve the problem of high concentration of sulfide in ethylene waste lye, the low temperature and low pressure catalytic oxidation desulfurization technology of Wuhan Junheng technology Co., Ltd. was adopted to pretreat sulfide in ethylene waste lye in 2022, and the sulfide concentration was reduced from 10,000～30,000 mg/l to less than 200mg/L. This has ensured the normal operation of the high-salinity water device.