ethylene, feedstock, propylene, olefins, natural gas, butanes, sulfur, acrylic acid, hydrocarbon, diluent, naphtha, isobutylene, crude oil, fractionation, butadiene, bitumen, paraxylene, methanol, condensates, monomer, ammonia, urea, cyclohexane, acrylonitrile, sulfuric acid, octene, xylenes, hydrocracking, styrene, esters, petrochemical, hexene, orthoxylene, mercaptans, isomerization, isoprene, pentane, distillate, isobutane, caprolactam, butene, reformate, gas, methane, polybutadiene, paraffinic, acetylene, vinyl acetate, adipic acid, dehydrogenation, phthalic anhydride, butylene, acetic acid, sodium sulfate, petroleum, crude, molecular sieve, refineries, ethylene glycol, caustic soda, toluene, helium, aspartic acid, bbl, aniline, alkanes, gasification, ethene, phosphoric acid, methylamine, nitrogen, terephthalic acid, argon, sodium chlorate, butyl, fractional distillation, hydrofluoric acid, carbonic acid, cumene, hydrogen, polycondensation, benzaldehyde, imine, vacuum distillation, calcium sulphate, calcium oxide, biogenic, glycerol, kharg, boron trifluoride, aromatics, alkyl, glycine, anhydride, tankage, putrescine, sulphates, plagioclase, fossil fuel, ethyl acetate, alumina, acetonitrile, propane, benzene, naphthalene, phenol, dioxide, bromine, butane, glycol, lithium, olefin, chlorine, fluorine, ethanol, supersaturated, aluminium, chemisorbed, ethyl, heptane, liquid, pyridine

ethyl, ethyl group, ethyl radical