联产邻二甲苯以提高对二甲苯装置经济效益

CO-PRODUCTION OF O-XYLENE FOR ENHANCING THE ECONOMIC BENEFIT OF P-XYLENE UNIT

为了提高对二甲苯装置竞争力及抗风险能力,可选择适当联产邻二甲苯的途径。模拟测算表明,邻二甲苯的量不宜大于对二甲苯的0.3倍,当邻二甲苯的量为对二甲苯的0.3倍时,其经济效益显著,税后财务内部收益率不小于50％、投资回收期可望不超过1a。

Co-production of o-xylene is a selective route for increasing the competition and anti-risk abilities of p-xylene unit. The simulating calculation shows that the proper o-xylene/p-xylene ratio is less than 0. 3. At an o-xylene/p-xylene ratio of 0. 3, the economic benefit will be obvious, the profit margin is expected to be more than 50% and the investment recovery period is expected to be less than one year.