A catalytic conversion method for producing high-octane gasoline
A catalytic conversion method, high-octane gasoline technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrocarbon oil treatment products, etc., can solve the problems of limited increase in gasoline octane number, gasoline quality is difficult to meet the requirements, etc., to improve gasoline Product quality, flexible control of reaction conditions, and the effect of improving economic benefits
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Embodiment 1
[0047] Taking the atmospheric residue oil listed in Table 1 as the raw material, the catalysts A, B and C listed in Table 2 are respectively used as catalytic cracking catalysts, stacking catalysts and aromatizing catalysts. figure 1 The shown scheme was tested on a mid-scale unit operating in continuous reaction regeneration. The raw oil enters the catalytic cracking riser reactor, and the temperature is 500 °C (outlet temperature), the reaction pressure is 0.2 MPa (absolute pressure), the ratio of agent to oil is 40 (weight ratio), the reaction time is 4 seconds, and the mass ratio of steam to raw oil ( The reaction is carried out under the condition of water-oil ratio for short) of 0.05, and then the reaction oil and gas are separated from the catalyst, and the reaction oil and gas enter the fractionation tower, and the catalyst is regenerated and recycled. The light gasoline fraction at 30-80° C. in the separated gasoline fraction enters the stacking reactor, wherein the C...
Embodiment 2
[0050] Compared with Example 1, in this example, the reaction temperature of the superposition reaction part is 300°C, and the weight hourly space velocity is 5h. -1 , the reaction pressure is 5MPa. The aromatization reaction unit has a reaction temperature of 400°C (outlet temperature), a reaction pressure of 0.2MPa (absolute pressure), an agent-oil ratio of 60 (weight ratio), a reaction time of 8 seconds, and a water-oil ratio of 0.05. Other reaction conditions are the same as in Example 1. Operating conditions and product distribution are listed in Table 3. As can be seen from Table 3, the octane number RON of the blended gasoline reaches 96.6, and the RON of the high-octane gasoline is 103. The aromatic hydrocarbon content in the high octane gasoline is 56.02% by weight, the olefin content is 16.08% by weight, and the proportion of polymethyl aromatic hydrocarbons in the aromatic hydrocarbons is 67.2% by weight.
Embodiment 3
[0058] According to the existing method, with the atmospheric residue oil in Table 1 as the raw material, at a reaction temperature of 500 ° C (outlet temperature), a reaction pressure of 0.2 MPa (absolute pressure), an agent-oil ratio of 40 (weight ratio), a reaction time of 4 seconds, water Carry out the reaction under the condition of oil ratio of 0.05 to obtain the light gasoline described in Table 4, and its distillation range is 30~80 ℃.
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