Results 31 to 40 of about 219,276 (273)

Data‐driven simulation of crude distillation using Aspen HYSYS and comparative machine learning models

The Canadian Journal of Chemical Engineering, EarlyView.
Integrated Aspen HYSYS–machine learning framework for predicting product yields and quality variables. Abstract Crude oil refining is a complex process requiring precise modelling to optimize yield, quality, and efficiency. This study integrates Aspen HYSYS® simulations with machine learning techniques to develop predictive models for key refinery ...
Aldimiro Paixão Domingos, Heleno Bispo, Thiago Vaz da Costa, Sérgio Mauro da Silva Neiro   +3 more
wiley   +1 more source

Nonlinear Fractal Flow Model of Fractured Vertical Wells With Stimulated Reservoir Volume Considering the Quadratic Gradient Term

Geofluids
Although various fractal flow models have recently been developed to investigate pressure responses of fractured vertical wells, almost all of the existing fractal models ignore the quadratic gradient term (QGT), which makes them violate mass ...
Xuefeng Yang, Xin Jiang, Cheng Chang, Yizhao Chen, Xiaojing Ji, Yanze Wan, Ziqi Qiu, Junjie Ren   +7 more
doaj   +1 more source

Comparative Analysis of Pore Structure and Adsorption Characteristics of Coal and Shale

Meikuang Anquan, 2020
In this paper, the pore structures of coal and shale were analyzed by the methods of high pressure mercury injection, low pressure N2 and CO2 adsorption.
WU Tengfei, DU Xidong, LI Qiqi
doaj   +1 more source

Occurrence of biogenic steranes and penta- cyclic triterpanes in an eocene shale /60 million years/ and in an early pre-cambrian shale /2.7 billion years Preliminary report [PDF]

, 1965
Occurrence of biogenic steranes and cyclic triterpanes in very old, carbonaceous sediment rock formations - Green River shale, and Soudan shale fragmentation ...
Calvin, M., Burlingame, A. L., Belsky, T., Haug, P.   +3 more
core   +3 more sources

Pore-scale analyses of heterogeneity and representative elementary volume for unconventional shale rocks using statistical tools [PDF]

, 2017
We express our appreciations to the Petroleum Technology Development Fund, Nigeria (PTDF), for funding this work.Peer reviewedPublisher ...
Adeleye, James O., Akanji, Lateef
core   +2 more sources

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

NMR-Based Quantitative Characterization of Water Imbibition in Deep Shale Rocks Under Different Pressures and Temperatures

Geofluids
Unconventional tight/shale gas reservoirs have gained significant attention in the energy sector. The importance of temperature and pressure in shale imbibition lies in their profound influence on the kinetics, rate, and ultimate amount of water uptake ...
Kaishuo Yang, Cheng Chang, Weiyang Xie, Yizhao Chen, Xingchen Wang, Fanxiang Xu, Xinhao Gong, Dunqing Liu   +7 more
doaj   +1 more source

Learning the Lessons of Antitumour Necrosis Factor Therapy-Associated Psoriasis

Canadian Journal of Gastroenterology, 2009
Psoriasis or psoriasiform skin lesions, as an adverse effect of treatment with antitumor necrosis factor antibody therapy, have been described relatively recently. Patients with these lesions have no personal or family history of psoriasis.
Matt Shale, Subrata Ghosh
doaj   +1 more source

In-situ laser retorting of oil shale [PDF]

, 1977
Oil shale formations are retorted in situ and gaseous hydrocarbon products are recovered by drilling two or more wells into an oil shale formation underneath the surface of the ground.
Bloomfield, H. S.
core   +1 more source

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source