Catalytic cracking method for producing high aromatic hydrocarbon oil and productive liquefied gas
A catalytic cracking, high aromatics technology, applied in the treatment of hydrocarbon oil, multi-stage series-connected refining and cracking process treatment, petroleum industry, etc. It can solve the problems of high equipment investment and operating costs, improve product distribution, and increase reaction temperature. , the effect of meeting the needs
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[0090] Example 1
[0091] like figure 1 As shown, the FCC raw material oil and the catalytic cracking catalyst were catalytically crackled in the lifting tube reactor 7 to form a reaction oil and gas. The operating conditions of the catalytic cracking reaction are shown in Table 2 below.
[0092] like figure 1 As shown, the reaction oil gas feed oil gas feed from the reaction unit to the washing deprofolding section of the catalytic cracking fractionation column 2, the reaction oil and gas is sufficiently contacted in the washing deprive heat section 13 to elute the reaction oil gas. Catalyst powder. The operating conditions of the fraction column are shown in Table 2 below.
[0093] In the fractionation column, the high aromatic hydrocarbon oil is sequentially extracted from bottom to top, and the tallow oil (as needed) and the light diesel are separated from the subsequent absorption stabilization unit to obtain gasoline, liquefied gas and dry gas. The product distribution of Ex...
Example Embodiment
[0094] Example 2-3
[0095] The preparation of the high aromatic hydrocarbon oil was performed in accordance with Table 2. The product distribution of Example 2-3 can be seen in Table 2 below. Further, the properties of the high aromatic oil produced in Example 2-3 were shown in Table 2 below. Its liquefied gas composition is shown in Table 2A.
[0096] Table 2
[0097]
[0098]
[0099] Table 2A
[0100]
Example Embodiment
[0101] Example 4-6
[0102] The preparation of high aromatic hydrocarbon oil is performed in accordance with Table 3. The product distribution of Example 4-6 can be seen in Table 3 below. Further, the properties of the high aromatic oil produced in Example 4-6 were shown in Table 3 below. Its liquefied gas composition is shown in Table 3A.
[0103] table 3
[0104]
[0105]
[0106]
[0107] Table 3A
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