Abstract
The influence of the content of rare earth elements (REE) on the thermal stability and catalytic properties of HREEY zeolites embedded in catalyst matrices that consist of bentonite clay, amorphous silica-alumina, and aluminum hydroxide is studied. It is found that an increase in the REE content from 0,0 to 6,5 wt.% increases the thermal stability of the zeolite by about 100 °C. It is shown that the increase in the REE content from 0 to 2 wt.% raises the conversion of vacuum gas oil by 8 wt.%. The acceptable level of conversion (77–78 %) of raw materials can be achieved with the content of REE of about 0,5 wt.%. The dependence of hydrogen transfer reactions on the content of REE in the cracking catalysts is exemplified by changes in the amount of isobutane in produced C4-hydrocarbons. On the basis of laboratory data, a technology for production of bizeolite cracking catalysts with a low content of REE (grades M, H) has been developed and implemented at JSC «Gazprom Neft–Omsk Refinery».
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
