Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Separation process
Thermodynamics
liquid-liquid equilibria
adsorption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,444
637
0.441
* Total Citation Counts Rankings
Ranking Based On Selection :2
Separation
Nanotechnology
Renewable Energy
Optimization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
970
820
0.845
* Total Citation Counts Rankings
Ranking Based On Selection :3
Bioseparation & Wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
887
539
0.608
* Total Citation Counts Rankings
Ranking Based On Selection :4
Chemical engineering process design
Heavy oil
wettability alteration
hydrate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
750
555
0.740
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
233
0.618
* Total Citation Counts Rankings
Ranking Based On Selection :6
Chemical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
122
107
0.877
* Total Citation Counts Rankings
Ranking Based On Selection :7
Petroleum science
Biofuel
AI
Water treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116
116
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :8
chemical reaction engineering
Catalysis
process safety
zeolite synthesis
Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
23
0.511
* Total Citation Counts Rankings
Ranking Based On Selection :9
Environmental Engineering
sustainable energy resources
waste valorization
biorefinery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :10
CFD
Nanofluids
wastewater treatment
mathematics
population balance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
15
0.938
Hossein Ghanadzadeh Gilani
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,444
637
0.441
Separation process
Thermodynamics
liquid-liquid equilibria
adsorption
S Siamak Ashraf Talesh
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
970
820
0.845
Separation
Nanotechnology
Renewable Energy
Optimization
Gholam Khayati
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
887
539
0.608
Bioseparation & Wastewater treatment
Javad Sayyad Amin
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
750
555
0.740
Chemical engineering process design
Heavy oil
wettability alteration
hydrate
Fereshteh Raouf
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
233
0.618
Allahyar Daghbandan
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
122
107
0.877
Hossein Rajabi Kuyakhi
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
116
116
1.000
Petroleum science
Biofuel
AI
Water treatment
Alireza Sakaki
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
23
0.511
chemical reaction engineering
Catalysis
process safety
zeolite synthesis
Environment
Arman Jafari
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Environmental Engineering
sustainable energy resources
waste valorization
biorefinery
Adel Eftekhari
University of Guilan
Rasht, Iran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
15
0.938
CFD
Nanofluids
wastewater treatment
mathematics
population balance