Results 61 to 70 of about 8,964 (222)

Asphaltene Adsorption onto Carbonaceous Nanostructures

, 2019
The adsorption of asphaltene onto different carbonaceous nanostructures including reduced graphene oxide (rGO), multiwall carbon nanotubes (MWCNTs), carbon black (CB), and activated carbon (AC) was studied.
Yadollah Mortazavi, Negahdar Hosseinpour, Fazel Mansoori Mosleh (8134395), Fazel Mansoori Mosleh, Negahdar Hosseinpour (1882378), Abbas Ali Khodadadi (1882375), Abbas Ali Khodadadi, Yadollah Mortazavi (1882372)   +7 more
core   +1 more source

An Experimental Investigation and Prediction of Asphaltene Deposition during Laminar Flow in the Pipes Using a Heat Transfer Approach [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2017
In this study, asphaltene deposition from crude oil has experimentally and theoretically been studied using a test loop and an accurate temperature monitoring during a laminar flow.
Farhad Salimi, Shahab Ayatollahi, Mohsen Vafaie Seftie   +2 more
doaj   +1 more source

The Effect of the Aging Process of Polyamide 11 Used in Flexible Pipelines and Its Influence on the Permeability of Carbon Dioxide

Polymer Engineering &Science, EarlyView.
Field degradation inducing changes in the Polyamide 11 permeability. ABSTRACT This study investigates how long‐term natural aging affects the CO2 permeability of polyamide 11 (PA11) pressure sheaths recovered from decommissioned flexible risers. PA11 samples were extracted from two 18‐year‐old risers—a gas‐lift line and an oil‐production line—and ...
Antônio Pedro Andrade da Cunha Ponciano Gomes, Frederico Gonçalves de Albuquerque Dias, Sijmon Van der Wal, Marysilvia Ferreira da Costa   +3 more
wiley   +1 more source

Asphaltene-Derived Graphene Quantum Dots for Controllable Coatings on Glass, Fabrics, and Aerogels

Graphene quantum dots (GQDs) derived from natural asphaltene byproducts can produce controlled hydrophobic or hydrophilic interfaces on glass, fabrics, and aerogels.
Alkiviathes Meldrum (6021191), Hassan Hassanzadeh (3595313), Jonathan G. C. Veinot (7324880), Maryam Aghajamali (2815297), Qiuyun Lu (12294394), Razieh Firouzi-Haji (13931924), Xuehua Zhang (1401544)   +6 more
core   +1 more source

Asphaltene Removal – The Effect of Ionic Liquid to Asphaltene Characteristics [PDF]

, 2009
Crude oil composes of asphaltene, along with saturates, aromatics and resins (SARA) compound. Changes of temperature and pressure during oil production lead to the precipitation, flocculation and aggregation of asphaltene.
Siti Sarah binti Marjunit, Siti Sarah
core  

Using Enzymatic Combinations to Reduce Asphaltene Aggregation [PDF]

, 2018
Team BACTERIA’s research aims to determine an optimal mixture of enzymes produced by fungi that would effectively reduce asphaltene aggregation in heavy crude oil, also known as bitumen.
Hensley, Jackson, Cowan, Jack, Abolafia, Julia, Kim, Danme, Harrison, Anna, Ko, Wing-Mei, Manivannan, Hema, Rivera Rubio, Lorena, Tyagi, Radhika, Le, Megan, Sarker, Prateeti   +10 more
core   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source

Subsurface Hydrocarbon Biodegradation in the Context of Microbial Habitability and Hydrogeologic, Thermal, and Geologic Evolution of the Colorado Plateau

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Subsurface microbial ecosystems associated with hydrocarbon reservoirs are shaped by temperature, salinity, redox gradients, and fluid flow. However, the drivers of microbial activity and hydrocarbon biodegradation over geologic timescales remain poorly constrained.
Meera P. Shah, Jennifer McIntosh, Peter Reiners, Lydia Bailey, Bradley S. Stevenson, Grant Ferguson, Ji‐Hyun Kim, Henrik Drake, Magdalena R. Osburn   +8 more
wiley   +1 more source

Interrelationship Between Asphaltene Precipitation Methods and Asphaltene Characteristics and Self-Association Behavior

, 2017
Asphaltene self-association and precipitation are unfavorable processes that can occur during production, transportation, and storage of crude oils.
S.. Afra, H. G. Alrashidi, H. A. Nasr-EL-Din   +2 more
core   +1 more source

EKSTRAKSI ASPHALTENE DARI MINYAK BUMI [PDF]

, 2009
Analisis elemental yang menentukan kadar-kadar unsur karbon, hidrogen, belerang, nitrogen, oksigen dan logam-logam tidak memberi gambaran mengenai karakter dan sifat minyak bumi.
Permatasari, Gita, Siswadi, Adharatiwi Dida   +1 more
core   +1 more source