用于最小化石油原料的脱硫中的添加剂使用的流体催化裂化工艺的控制

Control of fluid catalytic cracking process for minimizing additive usage in the desulfurization of petroleum feedstocks

Abstract

本发明提供一种用于使石油原料裂化从而产生脱硫全系列石油产品的方法和设备。所述石油原料在流体催化裂化FCC单元中接触碱性裂化催化剂和FCC添加剂,其中所述催化剂包含稳定的Y型沸石和稀上金属氧化物,且所述添加剂包含择形沸石。所述催化剂、添加剂和石油原料可在下降流或上升管流体催化裂化单元中进行接触,所述单元还可包含再生区、分离区以及剥离区。所述FCC单元包含集成式控制和监视系统,所述系统监视选自FCC操作参数、进给速率、原料性质以及产物流性质的至少一个参数,且响应于所测量的参数而调节至少一个参数,从而增加脱硫产品的产量。
A method and apparatus for the cracking of a petroleum oil feedstock to produce a desulfurized full-range gasoline product. The petroleum oil feedstock is contacted with a base cracking catalyst and an FCC additive in an FCC unit, wherein the catalyst includes a stable Y-type zeolite and a rare-earth metal oxide and the additive includes a shape selective zeolite. The catalyst, additive and petroleum oil feedstock can be contacted in a down-flow or riser fluid catalytic cracking unit, that can also include a regeneration zone, a separation zone, and a stripping zone. The FCC unit includes an integrated control and monitoring system that monitors at least one parameter selected from FCC operating parameters, feed rate, feedstock properties, and product stream properties, and adjusts at least one parameter in response to the measured parameter to increase production of desulfurized products.

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