سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۱۰

نویسنده(ها):

Arandiyan – MSc Student at the Chemical Engineering Department, Iran university of Science and Technology, Tehran, Iran, Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran
Parvari – Assistant Professor in Chemical Engineering College at the same Department. Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran

چکیده:

LaMoxV1-xOn Perovskite systems were prepared to be used in ethane for producing acetic acid. The perovskite systems have been obtained via a sol-gel related method using water as solvent. In order to understand the role of the precursor nature and calcinations conditions on the formation of LaMoxV1-xOn an identification used the FTIR, XRD, SEM, and EDS characterization test. The precursor structure is a function of raw material and calcinations conditions. It is show that the nitrate salts of lanthanum, molybdenum and vanadium and calcinations at 750ºC for 4 hours gave pure LaMoxV1-xOn perovskite with good homogeneity. These systems are highly efficient catalysts in direct synthesis of acetic acid from natural gas. Studies on the state of these systems after test show the stabilization of perovskite structures. The best-mixed perovskite for the direct synthesis acetic acid from natural gas is LaMo0.7V0.3O4.2.