natural gas is often associated with nitrogen and heavy compounds. the heavy components in the natural gas not only can feed downstream units, owing to the low temperature process may be formed solid as well. therefore, heavy components separation can be a necessity and produce useful products. virtually, all natural gases are containing nitrogen ​​that would lower the heating value of natural ...

nano silica sulfuric acid as a solid acid, was described to be an effective catalyst for one-pot three-component reaction of kojic acid, aryl aldehydes and indoles for the preparation of 2-substituted aryl (indolyl) kojic acid derivatives. the catalyst was prepared by combination of chlorosulfonic acid to nano silica gel. the size of nanoparticles were observed with sem.all prepared compounds w...

the efficient and environmentally friendly method for the one-pot synthesis of polyhydroquinolines has been developed in the presence of cuo nanoparticles. the multi-component reactions of aldehydes, dimedone, ethyl acetoacetate andammonium acetate were carried out under solvent-free conditions to afford some polyhydroquinoline derivatives. this method provides several advantages including high...

The identification of preferred binding domains within a host structure provides important insights into the function of materials. State-of-the-art reports mostly focus on crystallographic studies of empty and single component guest-loaded host structures to determine the location of guests. However, measurements of material properties (e.g., adsorption and breakthrough of substrates) are usua...

Abstract Ignition delay time measurements for multi-component natural gas mixtures were carried out using a rapid compression machine at conditions relevant to turbine operation, equivalence ratios of 0.5–2.0 in ‘air’ the temperature range 650–1050 K, pressures 10–30 bar. Natural comprising C1–C7 n-alkanes with methane as major component (volume fraction: 0.35–0.98) considered. A design experim...

The formation of modular, multi-component, host-guest complexes stable both in water and in the gas-phase is described; by modulating the stoichiometry of the different subunits in aqueous solution, quantitative self-assembly of the predicted and desired architecture is achieved, even allowing for ABA triblock copolymer assemblies stable in the gas-phase.

Methane (the major component of natural gas) is one the main energy sources for gas-powered turbines power generation, and transport vehicles [...]

MIT has been benchmarking Japanese and German NACOK air ingress tests using the FLUENT code for approximately three years [1]. The first benchmark study was for Japan Atomic Energy Research Institute’s (JAERI) isothermal and non-isothermal experiments [2] which investigate molecular diffusion of N2, and He under isothermal and natural circulation conditions, respectively. Another set of benchma...