期刊
JOURNAL OF CLEANER PRODUCTION
卷 283, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2020.125306
关键词
Soapstock; Fatty acid feedstock; Green diesel; Monometallic Ni catalysts; Hydrotreatment
资金
- European Regional Development Fund [1.1.1.2/VIAA/1/16/031]
The study investigated the performance, selectivity, recovery, and reusability of a commercial Ni66 +/- 5%/SiO2-Al2O3 catalyst in renewable hydrocarbon synthesis. By using a solvent-free one-pot hydrotreatment method, combustible gases and high yield linear saturated hydrocarbons were successfully produced from low cost raw material pretreated soapstock, indicating the potential for green energy production.
The performance, selectivity, recovery, and reusability of high metal loading commercial Ni66 +/- 5%/SiO2-Al2O3 catalyst were studied in renewable hydrocarbon synthesis from low cost raw material pretreated soapstock (TS) by solvent-free one-pot hydrotreatment (HT). TS was extracted from rapeseed oil chemical refining by-product/waste soapstock (SS) by developed simple treatment method. The catalyst was characterized by FE-SEM, TEM, XRF, XRD, and N-2 sorption analysis. Feedstock, liquid, and gaseous products were analyzed by FT-IR, GC-FID, GC-MS, GC-TCD, and CHNS elemental analysis. The effect of initial H-2 pressure (2-8 MPa), catalyst amount (3-9%), reaction temperature (280-340 degrees C), and residence time (15-60 min) on hydrocarbon production were investigated. Combustible gases and pure marketable linear saturated hydrocarbons with high yield 79.1%, calorific value 47.22 MJ/kg, C/H ratio 5.6, and n-C17 content 82.7% were successfully produced from TS using minimum effective catalyst amount and reaction conditions: 5%, 6 MPa, 320 degrees C, and 30 min. (C) 2020 Elsevier Ltd. All rights reserved.
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