| 摘要 |
FIELD: chemistry.SUBSTANCE: catalyst element contains a mixture of high-silica ceolites hydrating transition metals: nickel, tungsten and/or molybdenum, a binding agent and additionally contains a promoter that is a boric oxide or phosphorus oxide, or a mixture thereof. A mixture of high-silica ceolites is a triple mixture of ceolites: wide-pore faujasite - ultrastable USY, mesoporous ZSM-12 or ZSM-22, as well as pentasil CVN or ZSM-11; if the acid site content in ceolites falls within the range of 350-1,030 mcmole/g, the binding agent is aluminium oxide. The catalyst element has the following composition, wt %: ceolite mixture (acidic ingredient) 60.0-80.0; hydrating metals 6.0-20.0; promoter 0.5-4.0; aluminium oxide up to 100.0. What is declared is a method for isodewaxing diesel distillated with using the developed catalyst element; the diesel distillates are hydrotreated straight diesel distillates; the process is performed at a temperature of 250-400°C, a pressure of 2-5 MPa, volume fresh feed rate of 2-4 hour, in ratio of H/feed of 400-1,200 nm/m.EFFECT: isodewaxing catalyst element containing hydrating transient metals, and the method for isodewaxing with the use thereof enable producing high-yield waxy winter and Arctic diesel fuels.5 cl, 4 tbl, 4 ex |
