High-temperature gasification nozzle for petroleum coke

Abstract

The invention provides a high-temperature gasification nozzle for petroleum coke. The high-temperature gasification nozzle for petroleum coke comprises an oxygen spray pipe, an inner layer cooling jacket and a petroleum coke powder spray pipe which are coaxially arranged front inside to outside, wherein an oxygen inlet is formed in the upper part of the oxygen spray pipe, and the lower part vertically extends to form an oxygen outlet; an inner layer coolant inlet and an inner layer coolant outlet are formed in the upper part of the inner layer cooling jacket, and the lower part vertically extends to the bottom of the oxygen spray pipe and is sealed; petroleum coke guide rotating blades are coaxially arranged outside the inner layer cooling jacket; multiple petroleum coke feed inclined pipes are arranged at the upper part of the petroleum coke powder spray pipe, the lower part of the petroleum coke powder spray pipe vertically extends to the bottom of the inner layer cooling jacket to form annular space, and the inner wall of the petroleum coke powder spray pipe is in radial sealing contact with the petroleum coke guide rotating blades. The inner layer cooling jacket can control internal temperature of the nozzle, prevent overtemperature deformation and wear and prevent non-smooth flowing of petroleum coke powder, and the service life of the nozzle is prolonged.

Description

technical field [0001] The invention relates to the technical field of petroleum coke gasification in a high-temperature and high-pressure entrained bed reactor, in particular to a gasification nozzle. Background technique [0002] Petroleum coke is a by-product of the oil refining process. With the continuous increase of global crude oil processing volume, the output of petroleum coke is also increasing. In recent years, with the inferior and heavy quality of international crude oil, the proportion of high-sulfur petroleum coke to the total petroleum coke production has risen rapidly, and most of the increased production of petroleum coke in recent years is high-sulfur petroleum coke. Today's refineries are researching various more feasible and economically valuable petroleum coke treatment solutions. The more effective way to use it is to burn it as a raw material or gasify it. [0003] At present, there are several problems in the way of burning petroleum coke. For examp...

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Problems solved by technology

[0006] In order to solve the gasification problem of low petroleum coke reactivity, the present invention provides a petroleum coke high-temperature gasification nozzle, which has a simple structure, high temperature resistance, and can quickly mix the material with the gasification agent while reducing back-mixing and increasing the petroleum coke. Coke gasification reaction conversion rate, safe and stable operation

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