title: Retardation effect of nitrogen compounds and condensed aromatics on shale oil catalytic cracking processing and their characterization.
abstract: Untreated shale oil, shale oil treated with HCl aqueous solution and shale oil treated with HCl and furfural were used to do comparative experiments in fixed bed reactors. Nitrogen compounds and condensed aromatics extracted by HCl and furfural were characterized by electrospray ionization Fourier transform cyclotron resonance mass spectrometry and gas chromatography and mass spectrometry, respectively. Compared with untreated shale oil, the conversion and yield of liquid products increased considerably after removing basic nitrogen compounds by HCl extraction. Furthermore, after removing nitrogen compounds and condensed aromatics by both HCl and furfural, the conversion and yield of liquid products further increased. In addition, N1class species are predominant in both basic and non-basic nitrogen compounds, and they are probably indole, carbazole, cycloalkyl-carbazole, pyridine and cycloalkyl-pyridine. As for the condensed aromatics, most of them possess aromatic rings with two to three rings and zero to four carbon atom.
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Nan
authors.initials: N
authors.lastname: Li
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Shaojie
authors.initials: S
authors.lastname: Li
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Chaohe
authors.initials: C
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, 266580 China.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Chen
keywords: Nitrogen compounds and condensed aromatics; Shale oil fluid catalytic cracking; Structure characterization