Citation Rankings
Highly Cited Researchers

Engineering & Technology / Chemical Engineering Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Saudi Arabia
Mohammad Rehan
Chemical Engineering
Energy and Fuels
Waste-to-Energy
Nanomaterials
Pyrolysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,863
9,483
0.873
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Saudi Arabia
Hisham A Maddah
Photovoltaics
Solar Stills
DSSCs
Machine Learning
Solar-Desalination Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,867
1,754
0.939
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Saudi Arabia
Sharif F Zaman
Heterogeneous catalysis
Syngas conversion to alcohols
Molecular design of catalyst using DFT
C1
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,864
1,446
0.776
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Saudi Arabia
Salah Al Tahar Bouguecha
Desalination Membrane Processes Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,547
824
0.533
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Saudi Arabia
Pasupulety Nagaraju
Heterogeneous catalysis
CO2 utilizations
Biodiesel
Amm(oxidation)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
928
455
0.490
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Saudi Arabia
Aziz Alhejaili
Chemical Engineering
Gas Hydrates
Flow Assurance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
36
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Saudi Arabia
Abdullah Bahdad
Electrochemical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Last 6 Years Citation Counts Rankings
Rankings
39,402
Saudi Arabia
170
21
Ranking Based On Selection: 1
Mohammad Rehan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,863
9,483
0.873
Chemical Engineering
Energy and Fuels
Waste-to-Energy
Nanomaterials
Pyrolysis
* Last 6 Years Citation Counts Rankings
Rankings
299,134
Saudi Arabia
1,608
163
Ranking Based On Selection: 2
Hisham A Maddah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,867
1,754
0.939
Photovoltaics
Solar Stills
DSSCs
Machine Learning
Solar-Desalination Systems
* Last 6 Years Citation Counts Rankings
Rankings
355,867
Saudi Arabia
2,000
195
Ranking Based On Selection: 3
Sharif F Zaman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,864
1,446
0.776
Heterogeneous catalysis
Syngas conversion to alcohols
Molecular design of catalyst using DFT
C1
* Last 6 Years Citation Counts Rankings
Rankings
546,619
Saudi Arabia
3,241
295
Ranking Based On Selection: 4
Salah Al Tahar Bouguecha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,547
824
0.533
* Last 6 Years Citation Counts Rankings
Rankings
767,907
Saudi Arabia
4,723
393
Ranking Based On Selection: 5
Pasupulety Nagaraju
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
928
455
0.490
Heterogeneous catalysis
CO2 utilizations
Biodiesel
Amm(oxidation)
* Last 6 Years Citation Counts Rankings
Rankings
1,850,431
Saudi Arabia
11,784
709
Ranking Based On Selection: 6
Aziz Alhejaili
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
36
1.000
* Last 6 Years Citation Counts Rankings
Rankings
2,096,148
Saudi Arabia
12,958
758
Ranking Based On Selection: 7
Abdullah Bahdad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000