[Haichuan Chemical Salary News] Dongying Yatong Petrochemical plans to build a 1.2 million tons/year naphtha comprehensive utilization project
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Recently, the “Publication of Information on the First Environmental Impact Assessment for Dongying Yatong Petrochemical Co., Ltd.’s 1.2 million tons per year naphtha comprehensive utilization project” was released. The project is located in the Dongying Port High-End Petrochemical and New Materials Industrial Park, and it is an expansion project. Existing projects and their environmental protection measures: an 1.8 million tons per year high-grade heavy traffic asphalt production facility, an 800,000 tons per year catalytic cracking plant, a 200,000 tons per year gas separation unit along with a 40,000 tons per year MTBE production facility, a 250,000 tons per year aromatics plant, a 160,000 tons per year liquefied gas deep processing facility, an 800,000 tons per year catalytic cracking (DCC) facility for hydrogen production via the recovery of flared gases, as well as Phase 1 of the “dry gas recovery for hydrogen production, sulfur recovery, and hydroprocessing projects” (including a 300,000 tons per year electrode material production unit, a 1 million tons per year chemical oil hydroprocessing unit, and a 15,000 tons per year sulfur recovery unit). There are also various environmental and safety facilities such as accident ponds and flares. Based on the environmental impact assessments, acceptance evaluations and related approvals, as well as routine monitoring data for existing projects, the pollutants generated by these projects are all discharged within specified limits. Project construction content: The 1.2 million tons/year naphtha comprehensive utilization project consists of the main naphtha comprehensive utilization unit and a 20,000 Nm3/h PSA unit. The main unit comprises units such as the raw material pretreatment section, reaction heating furnace, reaction section, regeneration section, absorption stabilization and pentane removal section, propane removal section, heavy fraction removal section, and triphenyl extraction ； The utility and auxiliary production facilities rely on the existing facilities within the plant. A 13MW gas-fired heat transfer oil furnace is planned to be installed in the existing 25 tons/year aromatic compounds plant, using excess flare gas to reduce pollution. Add low-nitrogen burners to the heating furnaces of existing projects. The 1 million tons per year chemical light oil upgrading project is undergoing technical upgrades to add an extraction process; meanwhile, the naphtha aromatization project planned to be built will utilize this extraction process for triphenyl extraction. A main substation will be built at the South Plant.
Gas-fired heat transfer oil furnaces for chemical plants are relatively rare.
I feel it’s just a naphtha reforming project; changing its name makes it easier to get approval. Shandong’s local refineries must pursue a path of cooperation in order to grow stronger; otherwise, they will be squeezed to death by the three major oil companies and the National Development and Reform Commission.
What are the advantages and disadvantages? Is it by utilizing materials?
It’s not a material. Heat transfer oil is a specialized heat carrier that is enclosed in pipes and uses electrical circulation to heat the medium that requires heat; it seems to be used less frequently in petrochemical projects.
I don’t understand this. Some factories seem not to allow the use of boilers, so they use heat transfer oil for heating; however, the heat source in that case is electric. This factory uses gas – is there more gas available? ?
On the afternoon of November 8, the two key units of Dongying Yatong Petrochemical Co., Ltd.’s 2.2 million tons per year wax oil hydrocracking project – Reactor R102, the second hydrogenation reactor, and Reactor R101, the first hydrogenation reactor – were successfully lifted into place in one go. This marks significant progress in the equipment installation for the wax oil hydrocracking project at Dongying Yatong Petrochemical Co., Ltd., laying a solid foundation for the project’s official commissioning in mid-December this year. According to the person in charge of this project, the two reactors mentioned are the core equipment of the 2.2 million tons per year wax oil hydrocracking unit. The cracking reactor R102 has an inner diameter of 4,400 millimeters, a wall thickness of 250 millimeters, a height of 37 meters, and a weight of 1,160 tons; the refining reactor R101 has an inner diameter of 4,600 millimeters, a wall thickness of 255 millimeters, a height of 43 meters, and a weight of 1,240 tons. It is the largest hydrocracking and refining reactor among private refineries at present. Both reactors were lifted using the aerial rotation lifting method; the main crane was the largest crawler crane in China, a QUY2000 model equipped with a superlift function, while the auxiliary crane was a QUY650 crawler crane also fitted with a superlift function. The lifting operation for a single reactor was completed in an average of 90 minutes, setting a record for the shortest time required to lift reactors of this type. It is reported that the 2.2 million tons per year wax oil hydrocracking project of Dongying Yatong Petrochemical Co., Ltd. began construction in December 2016; to date, 95% of the total work has been completed, with the project scheduled to go into operation officially in mid-December this year. Once the project is completed, the company will be able to generate an additional output value of over 10 billion yuan per year, resulting in **an additional profit and tax revenue of 600 million yuan. At the same time, it also plays a role as a model project in helping Shandong Province build a **-level petrochemical industry base. It is said that this project has four major advantages. Firstly, the industry level is high; wax oil hydrocracking is an important part of advanced refining processes, and it represents a key initiative for transforming traditional refining operations into those focused on fine chemicals and new types of chemical products. The products generated by this project can serve as raw materials for downstream processing steps such as PX and caprolactam production, thereby further improving the industrial structure. Secondly, the process technology is advanced – the wax oil hydrocracking unit operated by Dongying Yatong Petrochemical Co., Ltd. uses a single-stage series full-circulation process, which enables a light oil yield of over 98%. Thirdly, the products have high added value; the aviation kerosene produced by this project is a high-value product, while both gasoline and diesel meet National VI standards, giving them strong market competitiveness. Fourthly, this project helps to reduce energy consumption – after it comes online, it can save nearly 30% in energy use. In addition, the project is equipped with environmental protection facilities that enable ultra-low emissions of exhaust gases and full recycling of rainwater and wastewater. Dongying Yatong Petrochemical Co., Ltd. established itself in the Dongying Port Economic Development Zone in 2007, and it was the first large-scale petrochemical enterprise to set up operations there. At present, the company’s annual processing capacity for crude oil is 5.3 million tons, while its overall processing capacity is 16 million tons per year.
These local refining companies in Dongying support each other; if there are problems with funds, several or more of them will suffer as a result
The cracking reactor R102 has an inner diameter of 4400 millimeters, a wall thickness of 250 millimeters, a height of 37 meters, and a weight of 1160 tons; the refining reactor R101 has an inner diameter of 4600 millimeters, a wall thickness of 255 millimeters, a height of 43 meters, and a weight of 1240 tons. It is the largest hydrocracking and refining reactor in private refineries to date. ------The largest reactor at present is likely to be at Zhejiang Petrochemical, which seems to be a private enterprise as well.