Results 21 to 30 of about 14,376 (260)

Improving Operability and Process Understanding of Sulfur Recovery Units

Chemical Engineering Transactions, 2012
Sulfur recovery units are particularly difficult to model since they are usually characterized by poor field instrumentation and the phenomena governing their main units and reactions are very complex and quite cumbersome to be explained by first-principles relationships.
Davide Papasidero, MANENTI, FLAVIO, Nadson M. Nascimento Lima, Lamia Zuniga Linan   +3 more
openaire   +3 more sources

The Effect of Sulfur Carriers on Nitrogen Use Efficiency in Potatoes—A Case Study

Agronomy, 2023
The use of sulfur is an important factor in potato production. At the beginning of this study, a hypothesis was put forward according to which sulfur carrier affects yield (TY) and nitrogen efficiency (EN).
Jarosław Potarzycki, Jakub Wendel
doaj   +1 more source

Long-term declines in atmospheric nitrogen and sulfur deposition reduce critical loads exceedances at multiple Canadian rural sites, 2000–2018 [PDF]

Atmospheric Chemistry and Physics, 2022
Daily air concentrations of inorganic nitrogen (N) species, including gaseous HNO3 and particulate-bound (p)NH4+ and pNO3-, and sulfur (S) species, including SO2 and pSO42-, and precipitation concentrations of NO3-, NH4+, and SO42-, have been routinely ...
I. Cheng, L. Zhang, Z. He, H. Cathcart, D. Houle, A. Cole, J. Feng, J. O'Brien, A. M. Macdonald, J. Aherne, J. Brook   +10 more
doaj   +1 more source

Nickel Hollow Spheres Concatenated by Nitrogen‐Doped Carbon Fibers for Enhancing Electrochemical Kinetics of Sodium–Sulfur Batteries

Advanced Science, 2020
The high energy density of room temperature (RT) sodium–sulfur batteries (Na‐S) usually rely on the efficient conversion of polysulfide to sodium sulfide during discharging and sulfur recovery during charging, which is the rate‐determining step in the ...
Bingshu Guo, Wenyan Du, Tingting Yang, Jianhua Deng, Dingyu Liu, Yuruo Qi, Jian Jiang, Shu‐Juan Bao, Maowen Xu   +8 more
doaj   +1 more source

Efisiensi Energi dan Reduksi Harga Total Produksi Hidrogen pada Siklus Sulfur-Iodine Seksi III Skala Pilot Menggunakan Analisis Pinch

Teknik, 2020
Proses produksi hidrogen melibatkan perpindahan panas dari satu aliran proses ke aliran proses yang lain atau dari aliran utilitas ke aliran proses dan sebaliknya. Hal ini memotivasi untuk dilakukan proses efisiensi energi.
Sonya Hakim Raharjo, Ima Winaningsih, Widayat Widayat   +2 more
doaj   +1 more source

Process Analysis and Design Considerations of a Low Carbon Methanol Synthesis Plant from Lignite/Waste Gasification

Fuels, 2022
This study presents design considerations and an evaluation of a full-scale process chain for methanol and advanced drop-in fuel production derived from lignite/solid recovered fuel (SRF) feedstock.
Georgios Zisopoulos, Nikolaos Detsios, Konstantinos Atsonios, Nikos Nikolopoulos, Panagiotis Grammelis   +4 more
doaj   +1 more source

Machine Learning-Enabled Prediction and Optimization of Sulfur Recovery Units: A Step towards Industry 4.0 Integration

Materials Proceedings
Sulfur recovery units are integral to the oil and gas industry, addressing the release of hazardous gases, particularly hydrogen sulfide. These units facilitate the conversion of H2S into elemental sulfur, aligning with stringent environmental ...
Imran Khan, Husnain Saghir, Muhammad Ahsan   +2 more
doaj   +1 more source

Developing a Risk Assessment Model for Respiratory Exposure to Toxic Chemical pollutants in one of gas refineries in South Pars using a Combination of AERMOD and SQRA Methods

بهداشت و ایمنی کار, 2023
Introduction: Nowadays, air pollution is now considered to be the largest environmental health threat. This study was conducted with the aim of determining occupational exposure to chemical pollutants, including sulfur dioxide (SO2) and hydrogen sulfide (
Seyed Saeed Keykhosravi, Farhad Nejadkoorki, Sonouran Zamani   +2 more
doaj  

Ultra-desulfurization of sulfur recovery unit wastewater using thin film nanocomposite membrane [PDF]

Separation and Purification Technology, 2019
Abstract Herein, to meet the requirement of the stringent sulfur emission and discharge rate standards based on World Health Organization (WHO) and Environmental Protection Agency (EPA), polyamide/titanium dioxide (PA/TiO2) thin film nanocomposite (TFN) membranes were synthesized to remove sulfur compound from sulfur recovery unit (SRU) wastewater ...
Azizi Namaghi, Hamed, Esmaeili, Mohammadamin, Pihlajamäki, Arto, Kallioinen, Mari, Mänttäri, Mika, Pourafshari Chenar, Mahdi, Haghighi Asl, Ali   +6 more
openaire   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source