two tech-nologies,hydroearbylation to produce ethylbenzene and carbonylation to propionic aldehyde and pro-pionic acid, are emphatically evaluated.
结果表明，烃化制乙苯经济
能较差，但技术、市场占优，建议优先
；
two tech-nologies,hydroearbylation to produce ethylbenzene and carbonylation to propionic aldehyde and pro-pionic acid, are emphatically evaluated.
结果表明，烃化制乙苯经济能较差，但技术、市场占优，建议优先；
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