SBIR Phase I: A Liquid-Absorbent Process for Xylene-Isomer Separation

* 9761414里昂 该小型企业创新研究第一阶段项目旨在开发一种液体吸收剂工艺，用于从混合异构体物流中选择性分离二甲苯异构体。该计划建立在以前的弯曲研究工作，旨在从天然气中分离N2。重点将放在液体吸收剂的开发，用于从石油化工厂在石油馏分裂化过程中产生的混合二甲苯流中分离对二甲苯。 在第一阶段，将筛选候选吸收剂，并使用以前工作中开发的深入的经济和工程模型对其性能进行评估。 在第二阶段，将优化最佳吸收剂的性能，以实现成功的商业工艺所需的性能和性能。 该方法有望为生产对二甲苯提供主要的成本优势。 每年消耗超过50亿磅的对二甲苯。 因为它应该适用于其他类型的分离，如乙烯/乙烷，丙烯/丙烷和支链/直链烯烃异构体的分离，它可以简化石油化工生产过程中，通过现有的设备。 ***

*** 9761414 Lyon This Small Business Innovation Research Phase I project is directed at development of a liquid absorbent process for the selective separation of xylene isomers from mixed-isomer streams. The program builds on previous Bend Research work aimed at the separation of N2 from natural gas. Focus will be on the development of liquid absorbents for the separation of p-xylene from mixed-xylene streams, which are produced in petrochemical plants during the cracking of petroleum fractions. In Phase I, candidate absorbents will be screened and their performance evaluated using an in-depth economic and engineering model developed in previous work. In Phase II, the performance of the best absorbents will be optimized to achieve the properties and performance needed for a successful commercial process. This process promises to offer major cost advantages for the production of p-xylenes. More than 5 billion pounds of p-xylenes are consumed annually. Because it should be applicable to other types of separations such as ethylene/ethane, propylene/propane and branched/straight-chain olefin isomer separations, it could streamline petrochemical manufacturing processes by debottlenecking existing facilities. ***