A study on the use of chemical conversion coating as a preparative technique for foam-based structured catalysts, in water gas shift reaction, is presented. The results showed significant correlation between textural properties structure and preparation technique, highlighting how suitable highly porous structures. In first part paper, performance two catalysts obtained by commercial aluminium ...

The process of hydraulic fracturing for recovery of oil and natural gas uses large amounts of fresh water and produces a comparable amount of wastewater, much of which is typically transported by truck. Truck transport of water is an expensive and energy-intensive process with significant external costs including roads damages, and pollution. The integrated development plan (IDP) is the industr...

Abstract The use of foams is a promising technique to overcome gas mobility challenges in petroleum reservoirs. Foam reduces the by increasing apparent viscosity and reducing its relative permeability. A major challenge facing foam application reservoirs long-term stability. effectiveness stability depends on several factors will typically diminish over time due degradation as well foam-rock-oi...

β-Lactoglobulin (BLG) adsorption layers at air-water interfaces were studied in situ with vibrational sum-frequency generation (SFG), tensiometry, surface dilatational rheology and ellipsometry as a function of bulk Ca(2+) concentration. The relation between the interfacial molecular structure of adsorbed BLG and the interactions with the supporting electrolyte is additionally addressed on high...

N. Burham; S.M.Abdel-Azeem; M. F. El-Shahat, Separation and determination of trace amounts of zinc, lead, cadmium and mercury in tap and qaroun lake water using polyurethane foam functionalized with 4-hydroxytoluene and 4-hydroxyacetophenone,Analytica Chimica Acta 579 (2006) 193–201. Abstract : N. Burham; S.M.Abdel-Azeem; M. F. El-Shahat, Determination of lead and cadmium in tap water and apple...

BACKGROUND Tazarotene foam is the first topical retinoid foam approved for the treatment of acne vulgaris. OBJECTIVE To review the safety and efficacy studies of tazarotene foam in the treatment of moderate to severe acne. METHODS Five Phase I safety studies in normal controls are reviewed and two Phase III safety and efficacy studies in patients with moderate to severe acne are reviewed. ...

Different foam formulations are or could become available where the use of film-forming foam is potentially restricted. Alternative foam formulations have different levels of fire extinguishment and burnback performance. The intent of this paper is to present a framework for determining “how good is good enough” in terms of foam agent performance. The focus is on the required fire extinguishing...

We perform experiments on the sloshing dynamics of liquids in a rectangular container submitted to an impulse. We show that when foam is placed on top of the liquid the oscillations of the free interface are significantly damped. The ability to reduce sloshing and associated splashing could find applications in numerous industrial processes involving liquid transport. When a container is set in...

Use of amine solutions for the removal of acid gases such as carbon dioxide (CO2) and hydrogen sulfide (H2S) from natural gas is the most common method, and, in this process, operational problems because of foaming are reported. Foaming can lead to the entrainment of liquid into downstream process equipment and might result in a situation in which the process specification...