Flexible coking process method and device for processing inferior heavy oil
A technology of flexible coking and low-quality heavy oil, which is applied in gasification process, cracking, petroleum industry, etc., and can solve problems such as poor fluidization conditions of flexible coking
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Embodiment 1
[0118] In this embodiment, a riser reactor 1 is used as a reactor in the flexible coking process to carry out a coking reaction. The coking reaction is: using low-quality heavy oil as feedstock oil, Thermal cracking is carried out in the medium to produce the whole fraction of oil gas and coke. Wherein, described coking reaction comprises the steps:
[0119] 1) The riser reactor 1 is combined with a settler 2 and a regenerator 3 to form a flexible coking reaction system, so that the settler 2 is arranged on the upper part of the regenerator 3, and the riser reactor 1 The upper outlet 11 stretches into the settler 2;
[0120] 2) Input the lifting steam from the lower end opening 17 of the riser reactor 1, and input the hot coke carrier from a first coke carrier inlet 16 below the riser reactor 1 side, so that the hot coke carrier is lifted in the steam Proceed to the upper part of the riser reactor 1 in a fluid state under action;
[0121] 3) Input atomized steam and raw mat...
Embodiment 2
[0126] In this embodiment, a riser reactor 1 is used as a reactor in the flexible coking process to carry out a coking reaction. The coking reaction is: using low-quality heavy oil as feedstock oil, Thermal cracking is carried out in the medium to produce the whole fraction of oil gas and coke. Wherein, described coking reaction step is identical with embodiment 1, and difference is:
[0127] Among them, the coking reaction temperature is 565°C, and the coking reaction time is 30s; the riser reactor 1 has a height of 20 meters and a diameter of 200mm, and the line speed adopted is 7m / s at the feed inlet, and the riser reactor 1 The upper outlet 11 is 18m / s; and, the carbon oil circulation ratio of the riser reactor 1 is 1:12 (weight ratio).
Embodiment 3
[0129] In this embodiment, a riser reactor 1 is used as a reactor in the flexible coking process to carry out a coking reaction. The coking reaction is: using low-quality heavy oil as feedstock oil, Thermal cracking is carried out in the medium to produce the whole fraction of oil gas and coke. Wherein, described coking reaction step is identical with embodiment 1, and difference is:
[0130] Among them, the coking reaction temperature is 520°C, and the coking reaction time is 20s; the riser reactor 1 has a height of 18 meters and a diameter of 165mm, and the line speed adopted is 5m / s at the feed inlet, and the riser reactor The upper outlet 11 is 14m / s; and, the carbon oil circulation ratio of the riser reactor 1 is 1:11 (weight ratio).
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Abstract
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