FIELD: organic chemistry.
SUBSTANCE: invention refers to lower olefins production and can be applied in chemistry and petrochemical industry, specifically to pyrolysis of propane-butane hydrocarbon gas used for ethylene production. Pyrolysis of propane-butane hydrocarbon gas implies that treatment of reactor surface with aqueous suspensions or zinc, cadmium and phosphorus compound solutions (solgel method), surface drying at 80-100°C and thermal treatment 250-450°C during 3-4 hours result in surface protective coating of weight to 70-100 g/m and gross-composition (mole %): P2O5 40-50, ZnO/CdO 50-40, and additionally admixtures of ferric oxide, chrome oxide, nickel oxide produced owe to reactor metal formulation at coating thermal treatment. Technical effect of pyrolysis of propane-butane hydrocarbon gas implies ethylene yield to 50-60% without coke accumulation at 770-850 C.
EFFECT: production of propane-butane hydrocarbon gas with high ethylene yield without coke accumulation.
10 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST OF PYROLYSIS OF PROPANE-BUTANE HYDROCARBON MATERIAL IN LOWEST OLEFINS AND METHOD OF OBTAINING IT | 2005 |
|
RU2331473C2 |
| METHOD FOR CATALYTIC PYROLYSIS OF HYDROCARBON MIXTURE C-C INTO LOWER OLEFINS C-C | 2015 |
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| CATALYST FOR PYROLYSIS OF HYDROCARBON MIXTURE C-C, METHOD OF THEREOF OBTAINING AND METHOD OF CATALYTIC PYROLYSIS OF HYDROCARBON MIXTURE C-C IN LOWER OLEFINS C-C ON THIS CATALYST | 2015 |
|
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| METHOD FOR OBTAINING LOWER OLEFINIC HYDROCARBONS | 2011 |
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| HYDROCARBON STOCK PYROLYSIS CATALYST, METHOD FOR PREPARATION THEREOF, AND METHOD OF CATALYTIC PYROLYSIS OF HYDROCARBON STOCK INTO LOWER OLEFINS | 2002 |
|
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| CATALYST FOR PYROLYSIS OF HYDROCARBON MIXTURE C1-C4 AND PREPARATION METHOD THEREOF | 2015 |
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| HYDROCARBON FEEDSTOCK PYROLYSIS CATALYST, METHOD FOR PREPARATION THEREOF, AND A METHOD OF HYDROCARBON FEEDSTOCK PYROLYSIS INTO LOWER OLEFINS | 2003 |
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| CATALYST FOR DEHYDRATION OF C-C HYDROCARBON MIXTURE TO OLEFINS AND METHOD FOR PRODUCTION THEREOF | 2020 |
|
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| CATALYST FOR PYROLYSIS OF HYDROCARBON FEEDSTOCK, METHOD FOR PREPARATION THEREOF, AND METHOD OF PYROLYSIS OF HYDROCARBON FEEDSTOCK INTO C-C-OLEFINS | 2002 |
|
RU2223144C1 |
| METHOD OF PRODUCTION OF LOWER OLEFINS | 2004 |
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