Following the production of the 900,000 tpa/year delayed coking unit of Hebei Xinquan Coking Co., Ltd., the 1 million tonne/year delayed coking project of Hebei Lent Petroleum Chemical Co., Ltd. and the 1 million tonne/year delayed coking project of Hebei Xinhai Petrochemical Co., Ltd. start.
“The reason why several delayed coking projects are launched in the short term is that companies have taken a fancy to our golden opportunity for the development of the chemical industry in Hebei, and secondly, enterprises have confidence in delayed coking technology.†Deputy Director of Jiangzhou Petrochemical Bureau, Hebei Province In an interview with reporters recently said.
According to the “Twelfth Five-Year Plan†of Hebei Province, the province will provide the province with the power to build two growth poles in Caofeidian New District and Bohai New District. The Caofeidian New Area must develop large-scale equipment and large chemicals while building large-scale steel products. It should establish a new type of industrialization base and national circular economy demonstration area. The Bohai New Area must set a new starting point for the development of new chemical industry groups and equipment, special steel, and modern logistics parks. It is precisely this policy that has taken a good look. Many petrochemical enterprises have settled in the beach.
Delayed coking, as a secondary oil processing technology, uses hydrogen-poor heavy oil as raw material, which can increase light oil yield and decarburization efficiency, and has continuous operation, large processing volume, strong flexibility, and decarbonization. High efficiency advantages. Deputy Director Jiang indicated that due to the general emphasis on crude oil in China and the high wax content, the domestic crude oil has a 5 to 7 percentage point lower diesel distillate yield than foreign crude oil; in addition, the secondary processing of China’s oil refineries is mainly based on catalytic cracking. The ratio is only 0.56, and the delayed coking is 1.94. Therefore, the development of delayed coking is a very effective way to solve the problem of low diesel-to-gas ratio and increased diesel production.
The above-mentioned advantages of delayed coking have enabled it to develop rapidly in our country. Hebei Petrochemical Corporation has grasped this opportunity period and formed a scale advantage in a very short period of time.
"Our company is using delayed coking technology, while using a recycling process, light oil yield and decarbonization efficiency are good." Li Guangxio, vice president of Hebei Shihai Petrochemical Group, told reporters.
With the substantial decline in production costs and environmental costs, the competitiveness of Shallow Petrochemical has significantly improved. Recently, the company requisitioned 2,400 mu of land in Lingang Chemical Industrial Park and planned to install a new 900,000 tons/year delayed coking unit. The company has also extended its product to 600,000 tons/year hydrogenation unit and 30,000 tons/year MTBE unit. The company can "eat dry squeezed" petroleum products.
Hebei Xinquan Coking Co., Ltd. uses vacuum residuum and Oman oil decompressed oil as main raw materials to produce coke and wax oil with a delayed coking process. For the high temperature smoke produced during the production of the device,
Xinquan coking through the technical transformation of the construction of the waste heat boiler, after the waste heat boiler into a temperature of 450 °C, a pressure of 3.82 MPa in the medium-temperature medium pressure steam, steam turbine generator to enter the power generation. The annual output of waste heat generating units is about 50 million kwh, which can achieve energy saving of 17,000 tons of standard coal, equivalent to reducing 34,800 tons of greenhouse gas carbon dioxide emissions, reducing sulfur dioxide emissions by 280 tons, and adding 10 million yuan to the enterprise. In addition, they also use coker gasoline and coker diesel hydrofining systems to produce stable gasoline and refined diesel fuel, thereby reducing the production cost of lighter oil production by 1/3 to 1/2, making the product more competitive.
From Hebei Lent Petroleum Chemical Co., Ltd., they learned that the composite modified asphalt developed by the delayed coking process has been favored by users in the international market. At present, the first 500 tons of products have been shipped to Africa. “Customers selected our products mainly because of their high temperature stability, especially in tropical climates in Africa. The road surface that uses this product is very resistant to rutting,†said Wang Guoqiang, chief engineer of Lent Petroleum. At present, the company has signed agreements with African merchants for export intentions of 100,000 tons of products.
“Huanghua Port has convenient transportation conditions and sources of raw materials for several major refineries nearby. Delayed coking projects may appear more here. Now, the Bohai New Area is gradually becoming China's residual oil lightweight production base.†Li Guishen pride Said.
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