文献类型：期刊文献

英文题名：Olive pomace waste conversion to bio-fuel by application of integrated configuration of pyrolysis/hydrodeoxygenation process

作者：Saidi, Majid[1];Inaloo, Ebrahim Balaghi[2];Liu, Haifeng[3];Zhao, Hui[4]

机构：[1]Univ Tehran, Coll Sci, Sch Chem, POB 14155-6455, Tehran, Iran;[2]Univ Tehran, Sch Chem, POB 141556455,Alborz Campus, Tehran, Iran;[3]Liaoning Petrochem Univ, Fushun, Liaoning, Peoples R China;[4]East China Univ Sci & Technol, Shanghai, Peoples R China

年份：2024

卷号：192

起止页码：1271

外文期刊名：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

收录：;EI(收录号：20244517334452);WOS:【SCI-EXPANDED(收录号:WOS:001354427500001)】；

语种：英文

外文关键词：Olive pomace waste; Pyrolysis; Hydrodeoxygenation; Ni-Mo/gamma Al 2 O 3 catalyst; Biofuel

摘要：Bio-oil obtained from non-catalytic pyrolysis of biomass, consists of a large number of oxygenated compounds. Hence, it is essential for the bio-oil to go through upgrading processes such as hydrodeoxygenation (HDO) to reform these compounds to aliphatic and aromatic hydrocarbons. This study works towards this purpose by initially deriving raw bio-oil from olive pomace waste biomass in a non-catalytic pyrolysis process at temperature of 400-700 degrees C. Then for reducing the oxygen content of derived bio-oil, HDO of the raw bio-oil over NiMo/Al2O3 catalyst was performed in a batch reactor, in varying operational parameters: temperature of 200-250 degrees C, reaction time of 1-3 h, hydrogen pressure of 2-6 bar and catalyst: bio-oil ratio of 1:20, 1:10, 1:5. The results revealed that the catalytic HDO is an appropriate procedure, as fatty acids as the main oxygenated components in bio-oil were reduced from 81.8 % to 56.7 %, aldehydes and ketones were entirely removed, and there was a noticeable rise in aliphatic hydrocarbons from 2.8 % to 33.9 % at temperature of 250 degrees C, hydrogen pressure of 6 bar and reaction duration of 3 h. In addition, by raising the catalyst to bio-oil ratio to 1:5, the content of fatty acids reached 47.6 %. Furthermore, a comparison was made between the O/C and H/C ratios of the obtained biofuels and the raw bio-oil, which results exhibited that this method worked successfully in substituting oxygen atoms of the raw bio-oil with hydrogen atoms.