Results 41 to 50 of about 8,964 (222)

Computer Simulation of Asphaltenes

Petroleum Chemistry, 2018
The review describes theoretical approaches based on computer simulations at various levels of details (from quantum chemical calculations to atomistic and coarse-grained models) to study asphaltenes and systems containing asphaltenes. The used methods are described, their advantages and disadvantages are discussed in terms of computational costs and ...
S. V. Lyulin, A. D. Glova, S. G. Falkovich, V. A. Ivanov, V. M. Nazarychev, A. V. Lyulin, S. V. Larin, S. V. Antonov, P. Ganan, J. M. Kenny   +9 more
openaire   +2 more sources

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

A Systematic approach to determine the optimal production rate to inhibit asphaltene deposition [PDF]

, 2016
This thesis utilizes a systematic mathematical model, scaling analysis, to quantify the effect of production rate on asphaltene deposition, using a set of uniquely described mathematical equations modeled for the deposition process.
Nosakhare, Adesuwa
core  

Anode Materials Requirements for Potassium Ion Batteries: Challenges and Future Possibilities

EcoEnergy, EarlyView.
This work identifies a critical scale‐up gap between laboratory battery research and industrial targets, driven by low active‐mass loadings and the omission of full‐cell metrics. We outline concrete strategies to bridge this divide, shifting focus toward high‐loading electrodes (> 3 mg cm−2) to ensure practical commercial viability of potassium ion ...
Md. Robiul Alam, Sahithi Thatipamula, Muhammad Waqas Khan, Suraj Loomba, Sharafadeen Gbadamasi, Muhammad Haris, Xian Jian, Asif Mahmood, Mahdokht Shaibani, Nasir Mahmood   +9 more
wiley   +1 more source

Enhanced asphaltene degradation using piezocatalytic technology: A novel approach for sustainable oilfield operations

Results in Engineering
Asphalt or oil spills containing asphaltene can contaminate soil, water bodies, and ecosystems. Natural balances are disrupted by this contamination. Asphaltene contaminates water sources such as rivers, lakes, and aquifers, making them unfit for human ...
Wrea Muhammed Ibrahim, Omid Amiri, Sangar S. Ahmed, Hunar Yasin Muhammed, Peshawa H. Mahmood, Karzan A. Qurbani, Nabaz A. Abdulrahman, Karim A. Younis, Peshang Kh Omer   +8 more
doaj   +1 more source

Adsorption behavior of asphaltene molecules on rock surface: A molecular dynamic study [PDF]

E3S Web of Conferences
Asphaltene deposition on rock surface seriously affects oil recovery efficiency. Molecular dynamics simulation method is used to study the difference in the adsorption behavior of asphaltene molecules on quartz surface, which will help to improve the in ...
Chen Sihang, Su Hang, Zhang Lu, Zhang Qian, Zhang Minghui, Sun Pengyu, Wu Yining, Ren Hao   +7 more
doaj   +1 more source

Assessing the Asphaltene Adsorption on Metal Oxide Nanoparticles [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2016
The Taguchi design of experiments (DOE) approach is adopted here to evaluate the impact ofeffective factors such as nanoparticles type, nanoparticles to model solution mass ratio, asphaltenestructure, and temperature on asphaltene adsorption equilibrium.
Fatemeh Amin, Ali Reza Solaimany Nazar
doaj   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Spatially Coupled Cl2 Confinement and Activation at Curved Ni Single‐Atom Sites for Highly Reversible Li–Cl2 Batteries

Angewandte Chemie, Volume 138, Issue 40, 28 September 2026.
A robust cathode featuring curvature‐engineered Ni single‐atoms anchored within hierarchical pores effectively confines Cl2 and accelerates Cl0/Cl−1 redox kinetics. This synergistic architecture unlocks the potential of Li‐Cl2 secondary batteries with an unprecedented 1×106 mAh g−1 cumulative capacity, all‐climate resilience (–40°C to + 70°C), and 7.65
Minggang Xie, Keren Jiang, Xuehai Tan, Xuesong Xie, Zheng Cheng, Xianbin Meng, Yuxuan Xue, Yi Guan, Zhixuan Chen, Yifan Li, Renfei Feng, Zhi Li   +11 more
wiley   +2 more sources

Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Oil & Gas Science and Technology, 2018
Zeolite beta nanoparticles were used as a new asphaltene adsorbent for reducing asphaltene deposition during fluid injection into a silica sand pack.
Kashefi Sepideh, Lotfollahi Mohammad Nader, Shahrabadi Abbas   +2 more
doaj   +1 more source