heavy aromatic造句

• Although several kinetically stabilized silabenzene and other heavy aromatic compounds with silicon or germanium atoms have been reported.
• The spirit at the beginning of the distillation ( heads ) and end ( tails ) is usually removed to avoid heavy aromatics.
• The Exxon plants, run by its Thai subsidiary Esso, will produce 350, 000 tons of paraxylene, 67, 000 tons of benzene and 249, 000 tons of heavy aromatics a year.
• The Exxon plants, run by its Thai subsidiary Esso, will produce 350, 000 tonnes of paraxylene, 67, 000 tonnes of benzene and 249, 000 tonnes of heavy aromatics a year.
• Commercially available demulsifier formulations are typically a mixture of two to four different chemistries, in carrier solvent ( s ) such as xylene, heavy aromatic naphtha ( HAN ), diesel.
• Heavy aromatic feedstock is converted into lighter products under a wide range of very high pressures ( 1, 000-2, 000 psi ) and fairly high temperatures ( 750?1, 500?F ), in the presence of hydrogen and special catalysts.
• The oil may be further refined by 1 ) alkali washing, or removing the heavy aromatic carboxylic acids with antibiotic properties, which may cause heartburn, gallbladder and pancreas irritation, and saponifying ) with a base such as sodium carbonate solution until the yellow residue disappears from the watery phase, decanting, and washing with water to remove the base and the saponified components ( and evaporating the solvents ).