World's Best Scientists 2026 revealed!
Pedro Pereira-Almao

Pedro Pereira-Almao

D-Index & Metrics

Engineering and Technology

D-Index
37
Citations
4986
World Ranking
8449
National Ranking
338

Pedro Pereira-Almao publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Pedro Pereira-Almao sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 123 publications — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Pedro Pereira-Almao D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Pedro Pereira-Almao sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 37 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Pedro Pereira-Almao is affiliated with the University of Calgary in Canada. Their research contributions primarily focus on the fields of engineering and chemistry, with a notable emphasis on mechanical engineering, analytical chemistry, ocean engineering, materials chemistry, and mechanics of materials.

The main topics addressed in their work include petroleum processing and analysis, enhanced oil recovery techniques, catalysis and hydrodesulfurization studies, hydrocarbon exploration and reservoir analysis, catalytic processes in materials science, nanomaterials for catalytic reactions, and catalysts for methane reforming.

Pedro Pereira-Almao has published several papers in various scientific journals. Recent publications include:

  • An active, stable cubic molybdenum carbide catalyst for the high-temperature reverse water-gas shift reaction, 2024, Science
  • Chemical insight into nano-catalytic in-situ upgrading and recovery of heavy oil, 2020, Fuel
  • Activity assessment of NiMo bimetallic nanocatalyst in presence and absence of steam in in-situ upgrading technology (ISUT), 2020, Fuel
  • In-situ upgrading in a dolomite porous medium: A kinetic model comparison and nanocatalyst deposition study, 2021, Journal of Petroleum Science and Engineering
  • Ultrasound-assisted bimetallic NiMo nanocatalyst preparation using microemulsions for in-situ upgrading application: Impact on particle size, 2020, Catalysis Today

The frequent publication venues for their research include Fuel, Journal of Petroleum Science and Engineering, Catalysis Today, Energy & Fuels, and Science.

Their collaborations involve multiple coauthors with whom they have worked extensively. Frequent coauthors are:

  • Carlos E. Scott
  • Milad Ahmadi Khoshooei
  • Lante Carbognani Ortega
  • Gerardo Vitale
  • Lante Carbognani

Best Publications

  • Metal Oxide Nanoparticles for Asphaltene Adsorption and Oxidation

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Application of Nanotechnology for Heavy Oil Upgrading: Catalytic Steam Gasification/Cracking of Asphaltenes

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Nanoparticles for Inhibition of Asphaltenes Damage: Adsorption Study and Displacement Test on Porous Media

    Camilo A. Franco;Nashaat N. Nassar;Nashaat N. Nassar;Marco A. Ruiz;Pedro Pereira-Almao

  • An active, stable cubic molybdenum carbide catalyst for the high-temperature reverse water-gas shift reaction

    Unknown

  • Toluene hydrogenation at low temperature using a molybdenum carbide catalyst

    María-Laura Frauwallner;Francisco López-Linares;J. Lara-Romero;Carlos E. Scott

  • Iron oxide nanoparticles for rapid adsorption and enhanced catalytic oxidation of thermally cracked asphaltenes

    Nashaat N. Nassar;Azfar Hassan;Lante Carbognani;Francisco Lopez-Linares

  • Adsorption and Subsequent Oxidation of Colombian Asphaltenes onto Nickel and/or Palladium Oxide Supported on Fumed Silica Nanoparticles

    Camilo A. Franco;Tatiana Montoya;Nashaat N. Nassar;Nashaat N. Nassar;Pedro Pereira-Almao

  • Effect of surface acidity and basicity of aluminas on asphaltene adsorption and oxidation

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Comparative oxidation of adsorbed asphaltenes onto transition metal oxide nanoparticles

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Hydrocracking of Athabasca Bitumen Using Submicronic Multimetallic Catalysts at Near In-Reservoir Conditions

    Carmen E. Galarraga;Pedro Pereira-Almao

  • Effect of the Particle Size on Asphaltene Adsorption and Catalytic Oxidation onto Alumina Particles

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Transport Behavior of Multimetallic Ultradispersed Nanoparticles in an Oil-Sands-Packed Bed Column at a High Temperature and Pressure

    Rohallah Hashemi;Nashaat N. Nassar;Pedro Pereira-Almao

  • Comparing Asphaltene Adsorption with Model Heavy Molecules over Macroporous Solid Surfaces

    Manuel F. González;Clementina Sosa Stull;and Francisco López-Linares;Pedro Pereira-Almao

  • Thermogravimetric studies on catalytic effect of metal oxide nanoparticles on asphaltene pyrolysis under inert conditions

    Nashaat N. Nassar;Azfar Hassan;Pedro Pereira-Almao

  • Characterization of Athabasca Vacuum Residue and Its Visbroken Products. Stability and Fast Hydrocarbon Group-Type Distributions

    Lante Carbognani;Manuel F. Gonzalez;Pedro Pereira-Almao

  • Flow of nanodispersed catalyst particles through porous media: Effect of permeability and temperature

    Amir Zamani;Amir Zamani;Brij Maini;Pedro Pereira-Almao

  • Kinetic Modeling of Bitumen Hydroprocessing at In-Reservoir Conditions Employing Ultradispersed Catalysts

    Herbert Loria;Gustavo Trujillo-Ferrer;Clementina Sosa-Stull;Pedro Pereira-Almao

  • High Temperature Simulated Distillation of Athabasca Vacuum Residue Fractions. Bimodal Distributions and Evidence for Secondary “On-Column” Cracking of Heavy Hydrocarbons

    Lante Carbognani;Joaquin Lubkowitz;and Manuel F. Gonzalez;† Pedro Pereira-Almao

  • Synthesis of nanocrystalline molybdenum carbide materials and their characterization

    Gerardo Vitale;Héctor Guzmán;Maria L. Frauwallner;Carlos E. Scott

  • Experimental Study on Transport of Ultra-Dispersed Catalyst Particles in Porous Media

    Amir Zamani;Brij Maini;Pedro Pereira-Almao

  • Kinetics of the catalytic thermo-oxidation of asphaltenes at isothermal conditions on different metal oxide nanoparticle surfaces

    Nashaat N. Nassar;Azfar Hassan;German Luna;Pedro Pereira-Almao

  • Ultradispersed catalyst compositions and methods of preparation

    Pedro Pereira-Almao;Vieman Alberto Ali-Marcano;Francisco Lopez-Linares Lopez-Linares;Alejandro Vasquez

  • Quinolin-65 and Violanthrone-79 as Model Molecules for the Kinetics of the Adsorption of C7 Athabasca Asphaltene on Macroporous Solid Surfaces

    Francisco Lopez-Linares;Lante Carbognani;Manuel F. Gonzalez;Clementina Sosa-Stull

Frequent Co-Authors

Nashaat N. Nassar
Nashaat N. Nassar University of Calgary
Brij B. Maini
Brij B. Maini University of Calgary
Farid B. Cortés
Farid B. Cortés National University of Colombia
Venkataraman Thangadurai
Venkataraman Thangadurai University of St Andrews
Steve Larter
Steve Larter University of Calgary
Maen M. Husein
Maen M. Husein University of Calgary
Zhangxin Chen
Zhangxin Chen University of Calgary
Apostolos Kantzas
Apostolos Kantzas University of Calgary
Viola Birss
Viola Birss University of Calgary
Wenqian Xu
Wenqian Xu Argonne National Laboratory

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