Ring-opening cracking method of naphthenic hydrocarbon
A technology of cycloalkane and ethylcyclohexane, which is applied in the field of ring-opening cracking of cycloalkane, can solve problems that have not been reported before, and achieve a good conversion rate of cycloalkane
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Embodiment 1
[0038] With 100g (dry base) β molecular sieve (production of Qilu Catalyst Factory, SiO 2 / Al 2 o 3 =25) with a certain amount of NH 4 Cl solution exchange wash to Na 2 O content below 0.2% by weight, NH exchanged with ammonium 4 β molecular sieve, after drying, firstly treated at 150°C for 2 hours, the purpose is low-temperature dehydration, to prevent deep dealuminization of the skeleton while deamination; then heat up to 300°C within 1 hour, and then treat at 300°C for 1 hour After 1 hour, remove the remaining moisture; then heat up to 550°C within 1.5 hours and treat at a constant temperature for 2 hours, so that the organic amine undergoes Hofmann degradation reaction and roasts at high temperature to remove the free carbon generated by the decomposition of the organic amine. Get Hβ molecular sieve, then add 14.4g H 3 PO 4 (concentration 85%) and 5.9g of lanthanum nitrate were dissolved in water, mixed, impregnated and dried, the obtained sample was PS-1, and the ch...
Embodiment 2
[0041] With 100g (dry base) β molecular sieve (production of Qilu Catalyst Factory, SiO 2 / Al 2 o 3 =25) with a certain amount (NH 4 ) 2 SO 4 Solution exchange washing to Na 2 O content below 0.2% by weight, NH exchanged with ammonium 4 β molecular sieve, after drying, firstly treated at 150°C for 2 hours, the purpose is low-temperature dehydration, to prevent deep dealuminization of the skeleton while deamination; then heat up to 300°C within 1 hour, and then treat at 300°C for 1 hour After 1 hour, remove the remaining moisture; then heat up to 550°C within 1.5 hours and treat at a constant temperature for 2 hours, so that the organic amine undergoes Hofmann degradation reaction and roasts at high temperature to remove the free carbon generated by the decomposition of the organic amine. Get Hβ molecular sieve, then add 8.4g NH 4 h 2 PO 4 and 5.0g of cerium chloride were dissolved in water, mixed, impregnated and dried, and the obtained sample was PS-2, and the chemic...
Embodiment 3
[0044] With 100g (dry base) β molecular sieve (production of Qilu Catalyst Factory, SiO 2 / Al 2 o 3 =40) with a certain amount of NH 4 NO 3 Solution exchange washing to Na 2 O content below 0.2% by weight, NH exchanged with ammonium 4β molecular sieve, after drying, firstly treated at 150°C for 2 hours, the purpose is low-temperature dehydration, to prevent deep dealuminization of the skeleton while deamination; then heat up to 300°C within 1 hour, and then treat at 300°C for 1 hour After 1 hour, remove the remaining moisture; then heat up to 550°C within 1.5 hours and treat at a constant temperature for 2 hours, so that the organic amine undergoes Hofmann degradation reaction and roasts at high temperature to remove the free carbon generated by the decomposition of the organic amine. Get Hβ molecular sieve, then add 9.6g (NH 4 ) 2 HPO 4 and 6.8g of praseodymium chloride were dissolved in water, mixed, impregnated and dried, and the obtained sample was PS-3, and the ch...
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