Abstract The adsorption of CO 2 on a nano-calcium oxide (nano-CaO) adsorbent was investigated under different conditions temperature and supply pressure, considering kinetic, isotherm, thermodynamic parameters. CaO is crystalline material with high surface area nanosized particles porosity, which showed rapid initial rates in the moderate range studied. well described by pseudo-second-order int...

The production of clean steel involves the controlling, elimination, or modification of nonmetallic inclusions. In Al-killed steels, alumina is the main type of inclusion. Calcium treatment, by wire feeding, is commonly used to modify solid alumina inclusions to calcium aluminates, which exists in a fully or partially liquid phase. Liquid inclusions can improve steel castability, but make inclu...

In the present work we used experimental relative volume unit cell and elastic stiffness constants measured by Speziale et al. (Journal of Geophysical Research, Vol. 111, (2006), pp. B02203 (12 pages)) using Radial X-Ray Diffraction at high pressure from 5.6 up to 65.2 GPa investigate effect on bulk modulus, aggregate shear wave velocities Debye temperature calcium oxide (CaO) ceramic material ...

Feedlot performance and mass balance were evaluated on steers fed either 5% untreated corn stover (CON), 20% untreated corn stover (NONTRT), or 20% calcium oxide (CaO) treated corn stover (TRT) when fed with or without saponins (Micro-Aid) in a 3x2 factorial. In both WINTER and SUMMER experiments, ADG, F:G and HCW were improved (P < 0.01) in CON and TRT fed steers compared to NONTRT fed steers....

in order to study the effect of vermicompost containing copper oxide and zinc oxide nanoparticles on was beans, in an experiment factorial were done based on a randomized complete block design in three replications. the experiment treatment were as follows: nanoparticles in 4 levels (0, 0.4, 0.8 and 1.2 g/kg weight of substrate), vermicompost in 3 levels (2.5, 5 and 7.5 g/kg-1 weight of substra...

OBJECTIVE To investigate the inhibition of Enterococcus faecalis by calcium peroxide (CaO₂). METHODS The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of Enterococcus faecalis by CaO₂ and calcium hydroxide (Ca(OH)₂) were determined by direct exposure tests (n = 10). The inhibition zone of E. faecalis mycoderm treated with CaO₂ and Ca(OH)₂ paste (53% w/w) ...

Utilizing a reversible reaction between CaO and CO2, namely the calcium looping (CaL) process, is among CO2 adsorption sequestration techniques that have been intensively studied over years. While CaO-based sorbents offer numerous advantages, such as broad accessibility, low cost, relatively high theoretical uptake (0.78 gram of per CaO), its capture capability during cyclic operation degrades ...

Biodiesel production from waste palm cooking oil (WPCO) was studied. Calcium oxide with a strontium ion additive (Sr-CaO) employed as catalyst in transesterification reaction of used methanol. The Sr-CaO synthesized by co-precipitation method between SrCl2 and Ca(NO3)2, then calcined at 900°C for 5 h. characterized using thermo-gravimetric analysis (TGA), X-ray diffraction (XRD), Scanning elect...