CAJ | 학술논문

直接焙烧FeSO4?7H2 O制备固体酸SO2－4／Fe2 O3催化剂，并对其进行NH3程序升温脱附表征。以工业乙醇为溶剂，研究了该催化剂对浒苔热液化生产生物油的催化作用。结果表明，焙烧温度和焙烧时间对固体酸SO2－4／Fe2 O3催化剂表面的酸量和酸强度有显著影响。500℃焙烧5 h制备的SO2－4／Fe2 O3催化效果最好，可以显著提高浒苔热液化生物油产率；与未加催化剂相比，生物油产率从44.8％提高至48.5％、残渣产率从40.7％降至35.0％。浒苔热液化所得生物油中含有较多的单糖和乙酯类化合物；加入固体酸SO2－4／Fe2 O3催化剂后，所得生物油中单糖类物质含量降低，乙酯类化合物含量显著增加，且有烷烃类物质形成。
직접배소FeSO4?7H2 O제비고체산SO2－4／Fe2 O3최화제，병대기진행NH3정서승온탈부표정。이공업을순위용제，연구료해최화제대호태열액화생산생물유적최화작용。결과표명，배소온도화배소시간대고체산SO2－4／Fe2 O3최화제표면적산량화산강도유현저영향。500℃배소5 h제비적SO2－4／Fe2 O3최화효과최호，가이현저제고호태열액화생물유산솔；여미가최화제상비，생물유산솔종44.8％제고지48.5％、잔사산솔종40.7％강지35.0％。호태열액화소득생물유중함유교다적단당화을지류화합물；가입고체산SO2－4／Fe2 O3최화제후，소득생물유중단당류물질함량강저，을지류화합물함량현저증가，차유완경류물질형성。
The solid acid catalyst SO2 -4 /Fe2 O3 was prepared by direct calcining FeSO4 ?7H2 O ,and characterized by temperature programmed desorption of NH3 (NH3‐TPD) .With industrial alcohol as solvent ,the catalytic activity of SO2 -4 /Fe2O3 catalyst in liquefaction of Enteromorpha prolifera (E. p roli f era) was investigated . Results showed that both calcining temperature and time had significant influences on the surface acid strength and acid amount of SO2 -4 /Fe2O3 . The SO2 -4 /Fe2 O3 obtained by calcining FeSO4 ?7H2 O for 5 h at 500℃ had the best catalytic activity in E .prolifera thermal liquefaction to produce bio‐oil .Compared with the E. prolifera thermal liquefaction without catalyst ,the bio‐oil yield increased from 44.8% to 48.5% ,while residue yield decreased from 40.7% to 35.0% .The bio‐oil from E . prolifera thermal liquefaction contained a large amount of monosaccharides and ethyl ester compounds .In the presence of SO2 -4 /Fe2 O3 ,the content of monosaccharides decreased , w hile the content of ethyl ester compounds increased significantly ,and ,also alkanes were formed .