Results 11 to 20 of about 119,400 (304)

Evaluation of Different Capture Solutions for Ammonia Recovery in Suspended Gas Permeable Membrane Systems

open access: yesMembranes, 2022
Gas permeable membranes (GPM) are a promising technology for the capture and recovery of ammonia (NH3). The work presented herein assessed the impact of the capture solution and temperature on NH3 recovery for suspended GPM systems, evaluating at a ...
María Soto-Herranz   +3 more
doaj   +1 more source

Life cycle assessment of bioethanol from corn stover from soil phytoremediation

open access: yesEnergy Reports, 2022
Bioethanol is the most widely used biofuel in the world. Bioethanol production from biomass is a way to reduce crude oil consumption and the environmental pollution.
Teresa M. Mata   +3 more
doaj   +1 more source

Synthesis of diazo dyes using the cellulose sulfuric acid at room temperature [PDF]

open access: yesشیمی کاربردی روز, 2013
This article, describes a new method for synthesis of diazo dyes. In this protocol, cellulose sulfuric acid has been used as a proton source for producing diazonium salts.
Firouzeh Nemati   +2 more
doaj   +1 more source

Direct Contact Membrane Distillation for Separation of Hcl From A Mixture of Acids

open access: yesJournal of Engineering, 2018
HCl is separated from HCl –H2SO4  solution by membrane distillation process(MD). The flat –sheet membranes made from polyvinylidene fluoride (PVDF) and polypropylene (pp.). Plate and frame these types of membrane where used in the process.
Assrar Abdullah Hassan, Hala Adel Jabbar
doaj   +1 more source

Evaluation of chromium concentration in cattle feces using different acid digestion and spectrophotometric quantification techniques

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
The objective of this work was to evaluate combinations between acid digestion techniques and spectrophotometric quantification to measure chromium concentration in cattle feces.
N.K.P. Souza   +6 more
doaj   +1 more source

Jaboulay gastroduodenostomy for pyloric obstruction after corrosive ingestion

open access: yesJournal of Pediatric Surgery Case Reports, 2020
Strong acid accidental ingestion is a common case in rural society and children. The effect of strong acids may cause injuries of the gastrointestinal tract.
Supangat   +2 more
doaj   +1 more source

Charge transfer and Fermi level shift in p-doped single-walled carbon nanotubes [PDF]

open access: yes, 2005
The electronic properties of p-doped single-walled carbon nanotube (SWNT) bulk samples were studied by temperature-dependent resistivity and thermopower, optical reflectivity, and Raman spectroscopy.
A. A. Maarouf   +14 more
core   +1 more source

Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation [PDF]

open access: yes, 2017
© 2017 Elsevier Ltd. Carbon-based sulphonated catalysts (CBSCs) were made from rice husk for biodiesel production. The CBSCs were prepared by microwave (MW) and conventional heating processes from the same feedstock.
Adam   +47 more
core   +1 more source

Effects of Additive for Anodizing Electrolyte on Anodic Film of High Silicon Aluminum Alloy

open access: yesInternational Journal of Electrochemical Science, 2016
High silicon aluminum alloy, Al-12.7Si-0.7Mg, is newly developed and in urgent need of surface treatment techniques. Sulfuric acid concentration, anodization temperature, anodization time and current density being fixed, three kinds of organic acids were
Yan Shang   +5 more
doaj   +1 more source

Microwave-assisted acid and base pre-treatment of cellulose hydrolysis

open access: yesAl-Mustansiriyah Journal of Pharmaceutical Sciences, 2013
The objective of this study is to hydrolysis the cellulose to glucose. The dilute acid and base hydrolysis of cellulose with hydrochloric, sulfuric acids sodium hydroxide and potassium hydroxide were undertaken alone, The conditions for the dilute acid ...
Khalid N. Jassim
doaj   +1 more source

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