Method for producing gasoline and diesel by utilizing waste lubricating oil
A technology for waste lubricating oil, gasoline and diesel oil, which is applied in lubricating compositions, petroleum industry, and hydrocarbon oil treatment. It can solve the problems of low product grade, poor economic benefit, secondary pollution, etc., achieve wide raw material range, reduce consumption, No secondary pollution effect
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Embodiment 1
[0020] Example 1: Gas-phase catalytic cracking of waste lubricating oil on a molecular sieve / alumina catalyst. The heavy oil is injected into the reactive distillation column equipped with molecular sieve / alumina catalyst for reaction and distillation. The catalyst is composed of alumina containing 30% ZSM-5 and 10% beta zeolite, and 2.0-3.0 is obtained by bonding molding mm columnar product, length 3-8mm, bulk density 0.65-0.80g / mL, strength greater than 40N / mm. The waste residue and gas generated during the waste plastic oil conversion process are used for heating, and the agent-oil ratio is controlled between 1-20. The gas produced is used to heat the distillation column. See Table 1 below for catalytic distillation material balance test results
[0021]
[0022] See Table 2 below for oil properties before and after catalytic distillation
[0023] raw material
Embodiment 2
[0024] Example 2: The supported cobalt molybdenum sulfide catalyst is a hydrorefining catalyst. The carrier adopts SiO 2 -Al 2 o 3 , the specific surface area is 200-400m 2 / g, the pore volume is 0.5-2.0cm 3 / g, the most probable pore size distribution is 2-4nm and 10-15nm. Cobalt molybdenum sulfide precursor adopts cobalt nitrate or cobalt acetate or cobalt acetylacetonate and ammonium thiomolybdate. The supported cobalt-molybdenum sulfide catalyst is prepared through the steps of impregnation-drying-calcination and the like by adopting an equal-volume impregnation method. The following table 3 sees reaction process conditions and product composition.
[0025] Operation stage
[0026] Reactor inlet hydrogen oil volume ratio
[0027] It can be seen from Table 3 that the oil fraction was hydrotreated on the supported cobalt molybdenum sulfide catalyst at 300 ° C, and no dienes were detected in the obtained product, and the contents of colloid, sulfur a...
Embodiment 3
[0028] Example 3: The hydrorefined product enters the atmospheric distillation column and is cut into gasoline (150°C) according to the distillation temperature. See the properties of gasoline and diesel in the table below 4
[0029]
[0030] It can be seen from Table 4 that gasoline and diesel fractions are obtained through atmospheric distillation of oil fractions. The obtained product has no peculiar smell, high-quality gasoline and diesel.
[0031] Embodiment 3: Catalytic distillation distillate oil is raw material, on the basis of embodiment 1, 2, 3 carry out stability experiment at 4.0MPa and 300 ℃, the following table 5 sees the reaction process condition of 200 hours operation and finally obtains product properties.
[0032]
[0033] Colloid / mg·100mL -1
[0034]As can be seen from Table 4, the experimental results of 200 hours, on the supported nickel-molybdenum sulfide catalyst at 300 ° C hydrofinishing, no diolefins were detected in t...
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Abstract
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