SAPO-34 and 1 mol% MeSAPO-34 (metal-modified catalysts, Me = Ni, Fe) were synthesized and tested for the catalytic pyrolysis of olive cake at 500 °C under inert conditions. The characterization of the catalysts was performed using XRD, BET, SEM, EDX, FT-IR, and TGA. MeSAPO catalysts demonstrated a chabazite cubic structure identical to the parent catalyst, with lower surface areas and particle sizes, and less water retention. The use of catalysts increased gas yield from 39 to 66% and decreased the oil yield from 39 to 10%. Biochar yield was maintained around 25%, and the solid samples showed an increase in carbonization as shown in the SEM and EDX results. Liquid GC-MS analysis indicated that SAPO was more selective towards alkane and amine products, whereas metal-modified catalysts favored the production of alkenes, acids, and phenols. Similarly, the analysis of the gas samples revealed the presence of light olefins and light oxygenated compounds which varied with the type of catalyst used.

合成了SAPO-34和1 mol％MeSAPO-34（金属改性的催化剂，Me = Ni，Fe），并在惰性条件下在500°C下测试了橄榄饼的催化热解。使用XRD，BET，SEM，EDX，FT-IR和TGA对催化剂进行表征。MeSAPO催化剂表现出菱沸石的立方结构，与母体催化剂相同，具有较低的表面积和粒径，并且保水性较低。使用催化剂将气体产率从39％增加到66％，并且将油产率从39％降低到10％。如SEM和EDX结果所示，生物炭的收率保持在25％左右，固体样品显示碳化增加。液相GC-MS分析表明，SAPO对烷烃和胺产物的选择性更高，而金属改性的催化剂则有利于烯烃，酸和酚的生产。同样，