Results 91 to 100 of about 76,427 (344)

Hydrotreating of waste lube oil by rejuvenated spent hydrotreating catalyst

Egyptian Journal of Petroleum, 2014
Large quantities of catalysts are used in the Egyptian refining industry for the purification and upgrading of various petroleum streams. These catalysts gradually lose activity through deactivation with time and the spent catalysts were usually ...
Sadeek A. Sadeek, Hoda S. Ahmed, Ebaa A. ElShamy, Hussien A. El Sayed, Asma A. Abd El Rahman   +4 more
doaj   +1 more source

The timing of capacity expansions as barriers to mobility in the United Kingdom’s petroleum refining industry between 1948 and 1998 [PDF]

We try to determine whether capacity expansion timing in oligopoly among incumbents can be considered mobility deterring. We study the United Kingdom ´s petroleum refining industry between 1948 and 1998.
Arrieta Paredes, Mary-Paz
core   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

Advanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche, Andreas Dzierza, Jan Egger, Timo Rheinberger, Christin Weilandt, Frederik R. Wurm, Ivo Nischang, Dagmar Fischer, Kalina Peneva   +8 more
wiley   +1 more source

An Assessment of the Potential Benefits of Refining Crude Oil in Ghana

International Journal of Emerging Research in Engineering, Science, and Management
Refining is vital in the oil and gas industry, converting crude oil into products like gasoline, diesel, and LPG. Since discovering oil in 2007, Ghana’s petroleum sector has experienced significant growth; however, the country still relies on imports to ...
Richard Amorin, Cornelius B. Bavoh, Bayorbor Yasmeen, Mohammed Hamzah   +3 more
doaj   +1 more source

The Promise of Solid Lubricants for a Sustainable Future

Advanced Materials, EarlyView.
Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher, Andrey A. Voevodin, András Korényi‐Both, Maria Clelia Righi, Christopher DellaCorte, Nazlim Bagcivan, Ali Erdemir, Carsten Gachot   +7 more
wiley   +1 more source

A critical review of development and demulsification mechanisms of crude oil emulsion in the petroleum industry

Journal of Petroleum Exploration and Production Technology, 2020
The need for efficient demulsification process to treat emulsions in the petroleum industry is well acknowledged. For decades, numerous researches have been conducted to examine mechanisms of emulsification and demulsification.
Sofiah Atirah Raya, Ismail Mohd Saaid, Abdelazim Abbas Ahmed, Abubakar Abubakar Umar   +3 more
doaj   +1 more source

Water Management in the Petroleum Refining Industry

, 2011
Petroleum refining industry uses large volumes of water. The water demand is up to 3 m3 of water for every ton of petroleum processed (US EPA, 1980, 1982; WB, 1998). Almost 56% of this quantity is used in cooling systems, 16% in boiling systems, 19% in production processes and the rest in auxiliary operations.
openaire   +3 more sources

Revenue raising taxes : general equilibrium evaluation of alternative taxation in U.S. petroleum industries [PDF]

Should the United States increase taxes and tariffs in the energy sector to reduce its federal deficit? This paper uses a twelve sector general equilibrium model to estimate the fiscal effects, and the effects on welfare and employment, of : (i) a 25 ...
de Melo, Jaime, Stanton, Julie, Tarr, David   +2 more
core  

Biofilm‐Antagonist Ginger‐Based 3D‐Printable Photoresins for Complex Implant Designs Exhibiting Advanced Multifunctional Biomedical Applications

Advanced Materials, EarlyView.
This work offers unique Ginger‐based 3D‐printable resins that can print customizable high‐resolution complex designs. The customizable printing backbone of Zingerol prints also mimics various human bones' strength. Acquisition of in‐vivo biocompatibility in rat model with no severe inflammatory response, along with in‐vitro antioxidant and ex‐vivo anti‐
Simran Jindal, Majd Bisharat, Bassma Khamaisi, Krishanu Ghosal, Eid Nassar‐Marjiya, Qi Wu, Shadi Daoud, Idan Redenski, Samer Srouji, Shady Farah   +9 more
wiley   +1 more source

Catalytic Performance of Synthesized Solid Acids in Methyl Acetate Esterification: A Comparative Study [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Solid acid catalysts are essential for various catalytic processes due to their high activity, stability, and reusability. In this study, four chlorosulfonic acid-functionalized solid acid catalysts—Silica Gel, Granular Activated Carbon, High Impact ...
Nahal Majdodin, Sahar Baniyaghoob, Kambiz Tahvildari, Amir Vahid   +3 more
doaj   +1 more source