Natural gas sweetening is an essential process within hydrocarbon processing operations, enabling compliance with product quality specifications, avoiding corrosion problems, and environmental care. This aims to remove hydrogen sulfide (H2S), carbon dioxide, or both contaminants. It can be carried out in fixed-bed adsorption towers, where iron oxide-based solid sorbent reacts the H2S produce su...

in order to simulate the rotating disk contactor all hydrodynamic parameters, dispersed phase hold-up, characteristic velocity, mean drop size, drop size distribution, axial mixing and mass transfer have been taken into account. mechanisms of mass transfer (stagnant, circulating, oscillating drops) were used in this study. column height found from effect of mean drop size and drop size distribu...

Geometrically, the theorem states that if a variety U/k becomes birationally equivalent to an Abelian variety over the algebraic closure of k, then it is birationally equivalent to an Abelian variety over k. (If k is a field with a discrete valuation, and ir is a prime element, then the curve defined by the equation X" + 7rY" + 7r2Zn = 0, with n = 3, shows that the conclusion of the theorem doe...

Permeability and air flow rate in the bed during iron ore sintering is crucial to control sinter quality productivity, due its influence on flame front speed. In present work, permeability of an blend was analysed utilising simultaneously measured pressure temperature at multiple points bed. Three different zones were categorized, i.e., humidified (green) bed, region maximum resistance (high-te...

Using literature data on iron melts, an expression of the surface tension cast melts as a function temperature and composition was obtained. Its predictions were satisfactorily compared with reported experimental results. Then, analysis information sessile drop experiments onto graphite substrates showed strong adhesion between these two phases when sulfur is present its dramatic decrease activ...

This study aims at the calculation of pressure drop from simulation internal nanofluid flow in a new and long stainless pipe (1.4 m 0.01 diameter). Calculations were made numeric simulations which based on theoretical models experimental proprieties three nanofluids: graphene nanodiscs with water, titanium oxide nanospheres water iron water. Different concentrations considered each kind nanoflu...

When two objects are presented in rapid succession, observers find it difficult to discriminate their temporal order. Below certain limit (e.g., 20-70 ms), the rate of correct temporal order judgement is reported to be about 50% (i.e., close to chance level). However we have found stimulus conditions where order discrimination drops significantly below chance level: the stimulus that is present...

Display environments for presentations are becoming diverse, and it is common to have multiple displays in the same room. We present a system to edit and give presentations using multiple displays. The main idea is to separate the content from the views. The author prepares presentation visuals (text and images) on an infinitely zoomable canvas, and then specifies what is shown in each display ...