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117238

Recent trends for clean fuel production by deoxygenation of pure palmitic acid using Ni/C catalyst.

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Physical chemistry

Abstract

Deoxygenation of triglycerides is one of key processes making possible a convenient production of high quality automotive fuels components (sulfur-, oxygen- and aromatics-free). This reaction was studied over non noble metal catalysts 20wt%Ni/C and performed in batch reactor system (autoclave) by using pure palmitic acid, n-hexane as a solvent and 200 psi pressure. The effect of different atmospheres (pure hydrogen, pure nitrogen, and mixture of 50 psiH2/150psiN2) and different temperature range (300 oC-350 oC) under a mixed atmosphere (50 psiH2/150psiN2) were studied in this paper.
The main product was n-pentadecane (C15) which the catalyst Ni/C has lower cracking selectivity to light hydrocarbons. The total conversion of carboxylic groups of palmitic acid and the selectivity to C15 in case of pure nitrogen are (22.29% and 12.38%) respectively and in case of hydrogen they are (75.16% and 80.07%) respectively. In case of using H2/N2 as a mixture the total conversion and the selectivity are (81.18% and 75.32%) respectively for Ni/C catalyst. The total conversion increases from 81.18% to 99.99% by increase the temperature from 300 oC to 350 oC. The deoxygenation of palmitic acid over 20wt%Ni/C catalyst indicated that the high selectivity for n-alkane (C15) (75.32%) at 300 oC and reach maximum value (98.11%) at 350oC. Analysis of liquid products by gas chromatography (GC) was used to determine n-alkane (C15) yield and other products (isomeres, olefins and dimers). Insights pertaining to the reaction scheme and an assessment of the reaction products as liquid transportation fuels are also provided in this contribution.

DOI

10.21608/ejchem.2020.40845.2829

Keywords

fatty acids, Catalytic deoxygenation, Ni catalysts, Green diesel

Authors

First Name

Ahmed

Last Name

Rashad

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

amrashad73@yahoo.com

City

-

Orcid

0000-0003-1442-0463

First Name

Heba M.

Last Name

El Sharkawy

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Mohamed A.

Last Name

Ebiad

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Hessin A.

Last Name

El sayed

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Ahmed H.

Last Name

Tantawy

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Benha University, Benha, Egypt.

Email

-

City

-

Orcid

-

First Name

Kaouser A.

Last Name

Hebash

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Benha University, Benha, Egypt.

Email

-

City

-

Orcid

-

First Name

Seham M.

Last Name

El sabagh

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Afaf R.

Last Name

Taman

MiddleName

-

Affiliation

Petroleum Research Institute, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City Cairo, Egypt

Email

-

City

-

Orcid

-

Volume

64

Article Issue

2

Related Issue

21013

Issue Date

2021-02-01

Receive Date

2020-08-28

Publish Date

2021-02-01

Page Start

883

Page End

892

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_117238.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=117238

Order

29

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Recent trends for clean fuel production by deoxygenation of pure palmitic acid using Ni/C catalyst.

Details

Type

Article

Created At

22 Jan 2023