IMPROVED PROCESSES TO REMOVE NAPHTHENIC ACIDS

Zhang, Aihua ; Ma, Qisheng ; Goddard, William A. ; Tang, Yongchun

California Institute of Technology (United States)

关键词: Removal;    02 Petroleum;    Decarboxylation;    36 Materials Science;    Stainless Steels;   

DOI  :  10.2172/825290
RP-ID  :  NONE
RP-ID  :  FC26-02NT15383
RP-ID  :  825290

美国|英语

来源: UNT Digital Library

【 摘 要 】

In the first year of this project, we have established our experimental and theoretical methodologies for studies of the catalytic decarboxylation process. We have developed both glass and stainless steel micro batch type reactors for the fast screening of various catalysts with reaction substrates of model carboxylic acid compounds and crude oil samples. We also developed novel product analysis methods such as GC analyses for organic acids and gaseous products; and TAN measurements for crude oil. Our research revealed the effectiveness of several solid catalysts such as NA-Cat-1 and NA-Cat-2 for the catalytic decarboxylation of model compounds; and NA-Cat-5{approx}NA-Cat-9 for the acid removal from crude oil. Our theoretical calculations propose a three-step concerted oxidative decarboxylation mechanism for the NA-Cat-1 catalyst.