公开(公告)号：US3784463A

公开(公告)日：1974-01-08

申请号：US3784463D

申请日：1970-10-02

Applicant: TEXACO INC

Inventor： REYNOLDS D ,  PRATT R ,  YOUNGBLOOD D ,  BUNN D

IPC: C10G11/18 ,  B01J9/20 ,  C10G37/02

CPC classification number: C10G11/18 ,  Y10S208/02

Abstract: Low octane naphtha and fresh gas oil are catalytically cracked with a zeolite catalytic cracking catalyst in separate elongated reaction zones yielding a naphtha having an increased octane rating. Recovering a naphtha fraction, particularly a heavy naphtha fraction, from the cracked product, and combining it with the fresh naphtha feed, further enhances the octane rating of the naphtha product. A cycle gas oil may be recovered from the reactor effluent and combined with the fresh naphtha feed or introduced into a separate (a third) elongated reaction zone to effect maximum recovery of naphtha and lighter stocks having improved product quality. Optionally, any of the feedstocks may be subjected to further cracking in a dense bed of the zeolite catalyst.

Abstract translation: 低辛烷值的石脑油和新鲜瓦斯油在分离的细长反应区域中用沸石催化裂化催化剂进行催化裂化，产生具有提高的辛烷值的石脑油。 从裂化产物中回收石脑油馏分，特别是重质石脑油馏分，并将其与新鲜石脑油进料相结合，进一步提高了石脑油产品的辛烷值。 循环瓦斯油可以从反应器流出物中回收并与新鲜的石脑油进料混合或引入到单独的（第三个）细长的反应区中，从而最大限度地回收具有改进的产品质量的石脑油和更轻的原料。 任选地，任何原料可能在沸石催化剂的致密床中进一步裂化。

公开(公告)号：US3799864A

公开(公告)日：1974-03-26

申请号：US32003673

申请日：1973-01-02

Applicant: TEXACO INC

Inventor： BUNN D ,  PRATT R

IPC: C10B57/04 ,  C10B20060101 ,  C10B55/00 ,  C10G9/00 ,  B01J9/20 ,  C10G11/00

CPC classification number: C10G9/005 ,  C10B55/00

Abstract: A FLUIDIZED CATALYTIC CRACKING PROCESS EMPLOYING MULTIPLE ELONGATED RISER REACTION ZONES WHEREIN A CHARGE STOCK, COMPRISING A LIGHT FRACTION BOILING IN THE 400-650* F. RANGE AND HAVING A POUR POINT OF +10* F. OR HIGHER AND A HEAVY FRACTION BOILING ABOVE 650* F., IS CONVERTED TO PRODUCE SUBSTANTIAL YIELDS OF HIGH OCTANE DEBUTANIZED NAPHTHA AND LIGHT CYCLE GAS OIL BOILING IN 400-650* F. RANGE AND HAVING A POUR POINT OF 0* F. OR LESS. THE LIGHT FRACTION IS SEPARATELY CRACKED IN A SECOND RISER REACTION ZONE ZONE AT HIGH TEMPERATURE AND HIGH CONVERSION FOR CONTROL OF LIGHT CYCLE GAS OIL PRODUCT POUR POINT. THE HEAVY FRACTION IS SEPARATELY CRACKED IN A SECOND RISER REACTION ZONE AT MODERATE TEMPERATURE AND MODERATE CONVERSION FOR CONTROL OF NAPHTHA TO LIGHT CYCLE GAS OIL PRODUCT RATIO.

公开(公告)号：US3801493A

公开(公告)日：1974-04-02

申请号：US3801493D

申请日：1972-10-25

Applicant: TEXACO INC

Inventor： YOUNGBLOOD D ,  KUHLMANN R ,  PRATT R

IPC: B01J8/26 ,  B01J29/90 ,  C10G11/18 ,  B01J9/20 ,  C10G11/00

CPC classification number: C10G11/18 ,  B01J8/26 ,  B01J29/90

Abstract: A FLUID CATALYTIC CRACKING PROCESS WHEREIN A GAS-OIL AND SLACK WAX ARE CONVERTED INTO HYDROCARBONS BOILING BELOW 430* F. THE PROCESS EMPLOYS TWO REACTORS SUCH THAT HIGH POUR POINT TEMPERATURE COMPONENTS OF SLACK WAX DO NOT CONTAMINATE LIGHT CYCLE OIL PRODUCTS OF GAS-OIL CRACKING.