公开(公告)号：US20160362613A1

公开(公告)日：2016-12-15

申请号：US15156541

申请日：2016-05-17

Applicant: ExxonMobil Research and Engineering Company

Inventor： Brian A. Cunningham ,  Christopher G. Smalley ,  Mohsen N. Harandi

IPC: C10G11/18

CPC classification number: C10G11/182 ,  C10G2300/70 ,  Y02P30/446

Abstract: A potentially heat-deficient fluid catalytic cracking process for effecting a bulk boiling point conversion of a high boiling point petroleum feed to lower boiling products in which the overall enthalpy balance between the endothermic cracking and exothermic regeneration is maintained by combustion of a supplemental fuel in the middle or upper region of the dense bed in the regenerator (including the region immediately above the dense phase bed). There is a direct economic benefit from operation of the cracking process in this way since the preferred supplemental fuel is methane (natural gas) which is currently a low cost fuel while liquid products are higher value. Use of natural gas as a supplemental fuel will allow re-optimization of the catalyst and operations separately from the heat balance demand.

Abstract translation: 用于实现高沸点石油进料到低沸点产物的体积沸点转化的潜在的热缺陷流化催化裂化方法，其中吸热裂化和放热再生之间的总焓平衡通过在 再生器（包括紧密相床上方的区域）的致密床的中部或上部区域。 由于优选的补充燃料是甲烷（天然气），因此当液体产品具有较高的价值时，它是目前低成本的燃料。 使用天然气作为补充燃料将允许与热平衡需求分开地重新优化催化剂和操作。