Method for separating n-alkanes in gasoline to improve octane number of gasoline
A gasoline octane number and gasoline technology, which is applied in the field of separating n-alkanes in gasoline to increase gasoline octane number, can solve the problems of inability to separate n-alkanes, low distillation range and low octane number of catalytic cracking gasoline, and achieve environmental friendliness , Simple equipment, stable separation process
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[0041] Example 1,
[0042] press figure 1 The process shown is to purify and recover FCC gasoline, cut 100kg / h FCC gasoline 101 into 50kg light component oil 102 and 50kg heavy component oil 103 at 100℃ in step 1; add heavy component oil 103 to 50kg in step 2 / h urea and thiourea (urea: thiourea = 1:1, mass ratio) in anhydrous ethanol solution, gradually reduce the temperature to -10 ℃ and stir to obtain a suspension 104; the suspension 104 is vacuum filtered 3 to obtain a solid phase The product 105 and the liquid product 110; the solid phase product 105 is dissolved by adding water in step 4 to obtain the oil phase product 106 and the cleaning water 107, the quality of the added water is 100-150 kg / h; the cleaning water 107 can be separated to obtain the complexing agent and water; The oil phase product 106 is further washed with water in step 5, and the quality of the water is 100-150kg / h to obtain the oil phase product 108 (that is, the removed normal alkanes) and cleaning w...
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[0047] Example 2,
[0048] press figure 1 The process shown is to purify and recover FCC gasoline. After step 1, 100kg / h FCC gasoline 101 is cut into light component oil 102 and heavy component oil 103 at 70°C; and heavy component oil 103 is added to urea and sulfur through step 2. In a saturated ethanol solution of urea (urea:thiourea=1:1, mass ratio), the mass ratio of the total mass of urea and thiourea to the heavy component oil 103 is 1:1, and the temperature is gradually reduced to -10°C and stirred to obtain a suspension The turbid liquid 104; the suspension 104 is vacuum filtered 3 to obtain the solid phase product 105 and the liquid phase product 110; the solid phase product 105 is dissolved by adding water in step 4 to obtain the oil phase product 106 and the cleaning water 107, the quality of the added water is 100-150kg / h; the cleaning water 107 can be separated to obtain the complexing agent and water; the oil phase product 106 is further washed with water in step ...
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[0052] Example 3.
[0053] press figure 1 The process shown is to purify and recover FCC gasoline. After step 1, 100kg / h FCC gasoline 101 is cut into light component oil 102 and heavy component oil 103 at 100°C; heavy component oil 103 is added to urea and shrinkage through step 2. In a saturated ethanol solution of diurea (urea: biuret = 1:1, mass ratio), the mass ratio of the total mass of urea and biuret to the heavy component oil 103 is 1:1, gradually reduce the temperature to 0℃ and stir Obtain the suspension 104; the suspension 104 is vacuum filtered 3 to obtain the solid phase product 105 and the liquid phase product 110; the solid phase product 105 is dissolved by adding water in step 4 to obtain the oil phase product 106 and washing water 107, the quality of the added water is 100 ~150kg / h; the cleaning water 107 can be separated to obtain urea and water; the oil phase product 106 is further washed with water in step 5, and the water quality is 100~150kg / h to obtain the...
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