Worldwide NH3 production reached 0.18 Gton in 2019, and 1–2% of the global CO2 emissions are due to large-scale synthesis (1 billion tons / year). A catalyst for ammonia has been obtained by pyrolysis iron phthalocyanine (FePc) precursor under N2, followed impregnation with alkali metals (Na, Li, K, Cs) H2 treatment. Characterization (XPS, XRD, HR-TEM, ICP-OES, TGA, CHNS analysis, BET) revealed...

To improve the alkali metal resistance of commercial catalyst Cu/SSZ-13 for ammonia selective catalytic reduction (NH3-SCR) reaction, a simple method to synthesize with core–shell like structure was developed. Compared smaller-sized counterparts, crystal size 2.3 ?m exhibited excellent Na poisoning. reveal influence on Cu/SSZ-13, physical characterization (XRD, BET, SEM, NMR) and chemical acidi...

Several studies of internal fiiction have been performed on silicate glasses. This work has the specificity to refer to isothermal mechanical spectroscopy over a large frequency range and for temperatures between 290 K and 520 K. Experiments were carried out with a single alkali silicate glass and two mixed alkali silicate glasses in order to observe the mixed alkali effect, to follow its evolu...

This paper argues that innovation can be best understood as an information process which is then concretized as a product that meets demand. Two very different firms, Canon Inc. and Apple Computer Inc., are used as case study illustrations. Innovation does not proceed through logical deduction, but rather is furthered by the use of metaphors and analogies. The bureaucratic and staid structures ...

The observation of Manchot? that sodium pentacyano-ammineferroate2 I absorbs oxygen has led Baudisch and his coworkers3 to study the catalytic action of this salt, as well as of its water analogue II, in the oxidation of pyrimidines and purines. The present authors have previously reported in this journal4 on the nature of the oxidation products obtained. In the present paper the problem is con...

It was advised to use aliphatic, cycloaliphatic, aromatic petroleum resins and their derivatives obtained by oxidation of with a mixture hydrogen peroxide acetic acid as bitumen polymer-modifiers. Petroleum were ionic polymerization unsaturated compounds liquid pyrolysis products under the influence titanium tetrachloride-diethylaluminium chloride catalyst. established that maximum values adhes...

• Bioleaching is good at deep As removal from regenerated product of spent SCR catalyst. results in a maximum 53.1% high pulp density 10%. Corresponding residue 174 mg/kg below limiting value 200 attained. Strong activation occurs by bioleaching along with removal. Cells secrete an amount cysteine accounting for and activation. Selective catalytic reaction (SCR) widely used flue gas denitrifica...

The current research deals with an experimental study in the Crawling Glaze technique under low temperature range (980) degrees Celsius, where a local bentonite clay was used as catalyst to achieve effect of on ceramic surface, and white (Akashat) chosen body for application by adding non-plastic materials such silicic sand grog, well kneading (burnishing) surface be ready this technique, homem...