Study of the effects of acidic after treatment on the gamma alumina powder properties
کد مقاله : 1174-PHYSCHEM20
نویسندگان:
زهرا شهیدیان *، آزاده پاپن، سارا بشکوفه، فاطمه توکل زاده
پژوهشکده توسعه صنایع شیمیایی
چکیده مقاله:
Increasing the pore volume and pore diameter of gamma alumina powder are the purpose of this research. In order to increase the pore volume and pore diameter of gamma alumina powder, the effects of acidic after treatment on physical chemistry of gamma alumina are studied. In this regard, the boehmite powder from the Azarshahr Nephlinsinite ore is calcinated at 650 ̊C for 6 hours and gamma alumina powder is obtained. In order to obtain the gamma alumina powder with desired pore volume and pore diameter, after treatments in hydrochloric acid and nitric acid and after treatment with different steps (first, second and third steps) on the boehmite powder are performed. The pore volume, pore diameter and surface area of the final prepared gamma alumina are studied by the BET techniques and the results shows that after treatment in hydrochloric acid and nitric acid with third steps are effective to increase the pore volume and pore diameter of the gamma alumina powder.
کلیدواژه ها:
gamma alumina; catalyst support; acidic after treatment; catalytic HDT.
وضعیت : مقاله برای ارائه به صورت پوستر پذیرفته شده است