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Petcoke powder burner

2009-04-17View Original

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As far as we know, there are burners that use petroleum coke powder; I was wondering if any of our colleagues in the refinery industry have used or are currently using such burners, and if so, could you provide a detailed description? As described below, the TLY-SYJ series of petroleum coke powder burners developed by Beijing XXX Company use petroleum coke powder as fuel, and can replace the natural gas or heavy oil fuels currently used in various heating furnaces. They are applied in crude oil heating furnaces and thermal injection furnaces in oil fields, as well as in heating furnaces in the petrochemical industry. I wonder where this technology has been used? ? ?
Reply #22009-04-18
Theoretically feasible, but due to the significant difference in the calorific value of coke compared to that of natural gas, as well as differences in ash content, it is practically unfeasible without any modifications
Reply #32015-02-09
This post was last edited by sdwfsgyykai on 2015-2-9 at 12:35. Technical parameters: Petroleum coke is first crushed, dried, and then finely ground to produce petroleum coke powder of specific specifications. This powder is fed into the furnace in a quantitative, continuous, uniform, and stable manner via a conveying system for combustion. The high heat generated facilitates the effective melting of the materials inside the kiln, allowing the production of various products that meet quality standards. Practice has shown that its use in the melting kilns of multiple glass manufacturing companies results in a significant reduction in fuel costs, yielding considerable economic benefits and enhancing the competitiveness of the products. Core technology: Comparison of the calorific values of heavy oil and petroleum coke powder: [Common standard values] The calorific value of heavy oil is approximately 10,000 kcal, while that of petroleum coke powder is about 8,800 kcal. The ratio of the calorific values of heavy oil to petroleum coke powder is ; It ranges from 1 to 1.1–1.17 (approximately 1.15). Based on this, it can be calculated that to achieve the calorific value of 1 ton of heavy oil, 1.15 tons of petroleum coke powder are required. Fuel consumption for a 500 t/d float glass production line that uses heavy oil as fuel: The annual consumption of heavy oil is approximately 32,000 tons per year. The market price of heavy oil is around 3,500 yuan per ton (this was the price in Hunan Province in May 2009). The annual cost associated with heavy oil consumption is therefore 32,000 tons/year × 3,500 yuan/ton = 112 million yuan per year. The equipment used in the heavy oil system operates for 8,760 hours per year, and its power consumption is 25 kilowatts per hour (with the electricity price at around 0.8 yuan per kilowatt). The electrical cost associated with this system is 8,760 hours × 25 kilowatts/hour × 0.8 yuan/kilowatt ≈ 175,000 yuan per year. The total annual cost for the heavy oil system is thus 112 million yuan for heavy oil plus 175,000 yuan for electricity costs, totaling approximately 112.17 million yuan.

For two 500 t/d float glass production lines that use petroleum coke powder as fuel: The annual consumption of petroleum coke powder is approximately 32,000 tons/year × 1.15 ≈ 36,800 tons per year. The market price of petroleum coke powder is around 1,400 yuan per ton (again, this was the price in Hunan Province in May 2009). The annual cost associated with petroleum coke powder consumption is therefore 36,800 tons/year × 1,400 yuan/ton = 51.52 million yuan per year. The equipment used in the petroleum coke system also operates for 8,760 hours per year, with a power consumption of 220 kilowatts per hour (electricity price still around 0.8 yuan per kilowatt). The electrical cost for this system is 8,760 hours × 220 kilowatts/hour × 0.8 yuan/kilowatt ≈ 1.54 million yuan per year. The total annual cost for the petroleum coke system is thus 51.52 million yuan for petroleum coke powder plus 1.54 million yuan for electricity costs, totaling approximately 53.06 million yuan.

For the three 500 t/d float glass production lines that use petroleum coke powder instead of heavy oil, the annual savings in fuel costs amount to 112.17 million yuan – 53.06 million yuan = 59.11 million yuan. The reduction in annual energy consumption is 1 – (53.06 ÷ 112.17) = 52.7%. This shows that a 52.7% reduction in fuel costs can be achieved, resulting in significant economic benefits. These benefits will be even greater if a grinding facility is established on-site. In summary, it reduces production costs for enterprises and brings significant economic benefits; therefore, a system for converting oil to powder for use in glass furnaces is essential. The implementation period for such a conversion system is typically 60 days, and the normal operation of the heavy oil and natural gas systems is not affected during this time. The investment cost associated with this conversion project can be recouped within 50 to 60 days of the equipment starting to operate. Using petroleum coke powder as a substitute for heavy oil in combustion **reduces the production costs of enterprises. This significant technological advancement indicates that our company is at the leading level in China in terms of fuel delivery and injection systems for glass furnaces. Working principle: This system uses a Roots blower as the power source for gas delivery, with compressed air serving as the control gas for valve operation and the backwashing of dust collectors. Each pair of small furnaces employs two silo pumps that take turns to deliver petroleum coke powder in controlled quantities through pipes, which is then sprayed evenly and steadily into the furnace for combustion using specialized powder nozzles. Design principles: 1. Low system investment, low operating costs, short construction period, and significant energy savings. 2. Low operating and maintenance costs, easy to operate, and high overall efficiency. 3. The selection of equipment is based on the principles of practicality and reliability, with a quick return on investment. Parameters of the material to be transported: 1. Material: petroleum coke powder. 2. Particle size of the material: 100–350 mesh. 3. Bulk density of the material: 0.4–0.45 t/m3. 4. Material temperature: room temperature. 5. Moisture content: ≤5%. Technical parameters for transportation: 1. Equivalent transportation distance: ≤150 m. 2. Maximum vertical elevation: ≤25 m. 3. Transportation capacity: 0.1–2.5 t/h (for a single set of small furnaces). 4. Distance at which the flame can be projected: ≤15 m. Applications: Glass furnaces (float glass, tank furnace, horseshoe furnace, etc.), as well as industrial furnaces in the metallurgy sector (steel rolling heating furnaces, etc.). Significant successes have been achieved in the field of coal injection, with numerous industry firsts attained, contributing to energy savings for enterprises. Make the due contribution. The company has applied for multiple patents, such as the “Concentrated-phase conveying device for blast furnace coal injection,” the “Device for uniform distribution of coal powder in blast furnaces,” the “Powder injection technology for float glass furnaces,” and the “Powder injection device for industrial furnaces,” among others. The company is committed to providing users with advanced and practical technologies, striving for excellence in design, aiming for perfection in its equipment, and earning the satisfaction and trust of its customers.

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