A cetane number improver, production process and application
A cetane number and improver technology, which is applied in the petroleum industry, fuel additives, physical/chemical process catalysts, etc., can solve the problems of complex preparation methods and inconvenient storage, and achieve simple production processes, less carbon deposition, and better reaction conditions mild effect
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Embodiment 1
[0027] This embodiment discloses a production process of a cetane number improver such as figure 2 shown, including the following steps:
[0028] Put 30g of sulfonated carrier macroporous crosslinked polystyrene-divinylbenzene pellets into 40ml of dichloroethane, swell for 3 hours, add 105 acid and 5ml of 95% sulfuric acid with a volume ratio of 3:2 into the system, Raise the temperature to 80°C for 0.5 hours, then raise the temperature to 100°C for 3 hours, then wash the reaction product with 10ml of 85% sulfuric acid, 60% sulfuric acid, and 30% sulfuric acid, and then wash the product with water until the washing water is neutral So far, put the product into an oven at 110° C. and dry it for 3 hours to obtain solid acid catalyst pellets (sulfonic acid type solid acid catalyst).
[0029] Add 50 g of tert-amyl alcohol to a three-necked flask with stirring, then add 0.5 g of sulfonic acid type solid acid catalyst, heat up to 50 ° C, and add 17 ml of 30% hydrogen peroxide drop...
Embodiment 2
[0032] This embodiment discloses a production process of a cetane number improver, comprising the following steps:
[0033] Put 50 g of sulfonated carrier macroporous cross-linked polystyrene-divinylbenzene pellets into 100 ml of dichloroethane, swell at room temperature for 2 hours, add 105 acid and 95% Sulfuric acid 10ml, heat up to 70°C for 1 hour, then heat up to 110°C for 4 hours, then wash the product with 10ml of 85% sulfuric acid, 60% sulfuric acid, and 30% sulfuric acid, and then wash the product with water until the washing water Until it is neutral, put the product into an oven at 110°C and dry it for 3 hours to obtain solid acid catalyst pellets.
[0034] Add 70g of tert-amyl alcohol to the three-necked flask with stirring, then add 0.5g of self-made solid acid catalyst, raise the temperature to 50°C, and add 25ml of 30% hydrogen peroxide dropwise with a constant pressure titration funnel, dropwise for 1 hour, and then add the hydrogen peroxide dropwise After the ...
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