Residual oil hydrogenation will become the new favorite of the industry
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As the quality of crude oil deteriorates, residual oil processing has become an inevitable trend in the development of the oil refining industry. How to choose a reasonable process route to process this part of residual oil to obtain maximum economic benefits and meet increasingly stringent environmental protection requirements has become an important strategic goal for refineries. Delayed coking product yield: Dry gas 7%, liquefied gas 3%, naphtha 15%, diesel 30%, coking wax oil 20%, petroleum coke 25%. Residual oil hydrogenation product yield: Dry gas 14%, liquefied gas 10%, naphtha 2%, gasoline 36%, diesel 33%, slurry 5%.
Residual hydrogenation is more expensive to operate than delayed coking. The delayed coking process is simple, has low processing costs, low energy consumption, and relatively fast returns. It can process various inferior oils, but it is a big problem in terms of environmental protection. Residual oil hydrogenation can provide good raw materials for catalytic cracking units, reduce sulfur emissions, and meet the requirements of clean production. However, residual oil hydrogenation also has very large limitations. A set of 3 million tons/year residual oil hydrogenation requires an investment of about 2 billion, and annual catalyst replacement also requires about 100 million. A set of 3 million tons/year delayed coking requires an investment of about 700 million.
With international crude oil prices remaining high,* * With the increasingly stringent requirements for environmental protection regulations and the substantial increase in market demand for light oil products, deep processing of residual oil has become an inevitable trend in the development of the oil refining industry, and residual oil hydrogenation will be more market competitive than delayed coking. According to statistics, the capacity of China's future expanded, under construction, and proposed residual oil hydrogenation units is 34.3 million tons/year, while delayed coking has entered a state of slow growth. In the later period, with the continuous advancement of refining capacity integration, some delayed coking units will be gradually phased out, and residual oil hydrogenation will become the new favorite of the industry.
With international crude oil prices remaining high,* * With the increasingly stringent requirements for environmental protection regulations and the substantial increase in market demand for light oil products, deep processing of residual oil has become an inevitable trend in the development of the oil refining industry, and residual oil hydrogenation will be more market competitive than delayed coking. According to statistics, the capacity of China's future expanded, under construction, and proposed residual oil hydrogenation units is 34.3 million tons/year, while delayed coking has entered a state of slow growth. In the later period, with the continuous advancement of refining capacity integration, some delayed coking units will be gradually phased out, and residual oil hydrogenation will become the new favorite of the industry.
Would the combined process of residual hydrogenation and delayed coking be better?
The purpose of hydrogenation is to increase the usable value of the raw materials. If everything is hydrogenated and the coking route is used, what is the point of hydrogenation?
Yes, that's the truth. Look at the newly built refining facilities with tens of millions of tons, all of which are used to hydrogenate residual oil.
Moreover, the calculation of accounts must be based on the general ledger. It cannot only look at the amount of investment, but also depends on future development trends and whether environmental protection can be passed.
The conversion rate cannot reach 100, so it needs to be coked. It is also best to de-coke some dirty oil.
But it’s very tiring, not as comfortable as wax oil, and the salary is the same.