Results 21 to 30 of about 370 (171)

Table_6_Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland).DOCX

, 2021
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands.
Robert Stasiuk (11770313), Renata Matlakowska (2309104)   +1 more
core   +1 more source

Table_3_Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland).DOCX

, 2021
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands.
Robert Stasiuk (11770313), Renata Matlakowska (2309104)   +1 more
core   +1 more source

Behaviour of Vanadyl Porphyrin Complexes on TLC

, 1982
Indian Institute of Petroleum, Dehra Dun-248 005 Manuscript received 23 April 1980, accepted 7 June 1982 The behaviour of a vanadium porphyrin complexes concentrate obtained from Darius crude oil has been studied on tic using a variety of solvent combinations and silica gel as the adsorbent.
(Miss) S. CHAKRABORTY, V. K. BHATIA
openaire   +2 more sources

Table_2_Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland).DOCX

, 2021
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands.
Robert Stasiuk (11770313), Renata Matlakowska (2309104)   +1 more
core   +1 more source

Non-Destructive Analysis of Mummification Balms in Ancient Egypt, Based on EPR of Vanadyl and Organic Radical Markers of Bitumen

, 2020
The black matter employed in funeral context by ancient Egyptian is a complex mixture of plant-based compounds with variable amounts of bitumen. Asphaltene, the most resistant component of bitumen, contain Vanadyl porphyrins and carbonaceous radicals ...
Hitomi, Fujii, Charles-Emmanuel, Dutoit, Laurent, Binet, Didier, Gourier, Agnes, Lattuati-Derieux   +4 more
core   +1 more source

Table_9_Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland).XLSX

, 2021
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands.
Robert Stasiuk (11770313), Renata Matlakowska (2309104)   +1 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, Volume 36, Issue 15, 19 February 2026.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Separation and Characterization of Vanadyl Porphyrins in Venezuela Orinoco Heavy Crude Oil

, 2015
Venezuela Orinoco heavy crude oil was sequentially separated into several subfractions to determine the contents and types of vanadyl porphyrins contained in the products.
Suoqi Zhao (1271715), Quan Shi (1261062), Yuanyuan Yan (1296984), Qingyu Zhang (443591), Yu Liu (6938), Keng Chung (1296987), Xu Zhao (133907), Chunming Xu (136095), Yahe Zhang (1261077), Murray R. Gray (1296990)   +9 more
core   +1 more source

Table_8_Postdiagenetic Bacterial Transformation of Nickel and Vanadyl Sedimentary Porphyrins of Organic-Rich Shale Rock (Fore-Sudetic Monocline, Poland).DOCX

, 2021
Nickel and vanadyl porphyrins belong to the so-called fossil geo- or sedimentary porphyrins. They occur in different types of organic matter-rich sediments but mostly occur in crude oils and their source rocks, oil shales, coals, and oil sands.
Robert Stasiuk (11770313), Renata Matlakowska (2309104)   +1 more
core   +1 more source

Selective Adsorption of Vanadyl Porphyrin on Solid Adsorbent in the Presence of Polycyclic Aromatic Hydrocarbon: Kinetics, Equilibrium, and Thermodynamic Studies

Chemistry
The presence of vanadium compounds in heavy oils poses a significant challenge by poisoning and deactivating refining catalysts, making their removal an essential processing step.
Xiu Chen, Chen Huang, Haidong Li, Suoqi Zhao, Linzhou Zhang   +4 more
doaj   +1 more source