The prediction of phase equilibria for hydrocarbon/water blends in separators, is a subject considerable importance chemical processes. Despite its relevance, there are still pending questions. Among them, the correct number phases. While stability analysis using Gibbs Free Energy mixing and NRTL model, provide good understanding with calculation issues, when HYSYS V9 Aspen Plus software, this ...

Trembling aspen (Populus tremuloides Michx.) generally grows as clones in which stems, ranging from many thousands to only a few, are interconnected by a common root system. When clones are very large, in one recorded case involving about 47␣ 000 stems joined together over a 43 ha area, aspen becomes a candidate for earth’s most massive and oldest organism. Recent analyses suggest that aspen cl...

Catalytic hydrothermal decarboxylation of biomass-derived butyric acid can produce renewable biopropane as a direct drop-in replacement fuel for liquefied petroleum gases. In this present study, experimental results from batch reactor have been used to develop hypothetical continuous process deliver 20,000 tonnes/year biopropane, base-case capacity, 10 wt% aqueous acid. A combination synthesis ...

abstract the goal of this research is simulating an optimum reactor to eliminate greenhouse gases, mainly co2, through combined cycle in stacks of power plant, using a strong base (sodium hydroxide) thinned by water. during this process sodium bicarbonate salt is generated together with water and the produced salty water is desalinated and its useful salts are also extracted. four scenarios hav...

1 Corresponding author: [email protected]; 715-346-4098 2 [email protected]; 541-737-3056 ABSTRACT: Aspen (Populus tremuloides) stands inside and outside Yellowstone National Park (YNP), Wyoming, USA, were compared to test whether the lack of overstory aspen recruitment observed in YNP extended to winter ranges of elk (Cervus elaphus) in adjacent national forests. Remote sensing and fi...

Herein, a performance analysis of La-doped copper-based catalysts (CuO/ZrO2/La-Al2O3) in methanol steam reforming (MSR) was conducted and compared with commercial low temperature water-gas shift catalyst (HiFUEL W220) to produce H2 CO selectivity. The physicochemical properties as-obtained were characterized by N2 adsorption, XRD, ICP-OES. Effect calcination (750 oC 1000 oC) on the mixed oxide ...

Gas turbines have gained popularity in power generation application because of its ease operation, fuel flexibility and low emission greenhouse gases. When use as a simple gas turbine (SGT), it has the challenge thermal efficiency, which needs improvement to enhance efficiency other performances. This paper presents energy analysis incorporating retrofitted combined regenerative organic Rankine...

Water from rivers are often characterised with variable compositions influenced by the environment on path of flow. Treatment chemicals additives to obtain a level purification will require repeated test ascertain required concentrations. The complex structure continuous flowing river was investigated determine dosage different concentrations Calcium Hydroxide in specific volumes water gang sti...

Abstract. Natural gas (NG) must be treated to remove sulphur compounds and acid gases i.e., carbon dioxide (CO2) hydrogen sulfide (H2S) ensure that it complies with requirements for sale transportation. More than 95% of the NG processing plants are operated through removal unit (AGRU) using aqueous amine solvent in removing sour components from hydrocarbon due availability at a low cost. Howeve...

One of the significant processes crude oil refining process is fluid catalytic cracking (FCC) unit. This unit produces olefins and other feedstock for petrochemical industry as well high octane gasoline, naphtha, light cycle oil, heavy oil. Attrition one forms catalyst deactivation on FCC which affects its operation, thereby giving rise to a amount makeup compensate losses in this study investi...