US3853744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sour water disposal in fluid solids systems
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1973-05-14
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Granted: 1974-12-10
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Expires: 1993-05-14
Abstract
Abstract Sour water resolving from fluid solids hydrocarbon conversion processes, such as catalytic cracking and fluid coking, is disposed of by vaporization in a fluid solids bed. Heat for the vaporization is supplied by circulating hot solids between the steam generation vessel and the coker burner or heating unit in a fluid coking process or the regenerator in a catalytic cracking process. The process of this invention is particularly useful in the residuum conversion process which integrates coke gasification with fluid coking.
Inventors
- 👤 G Lahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G; C10G11/00; C10G11/14; C10G11/18; Y; Y10; Y10S; Y10S203/00; Y10S203/11
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
IN A HYDROCARBON CONVERSION PROCESS WHEREIN A STREAM OF FLUIDIZED SOLID PARTICLES IS CIRCULATED BETWEEN A CONVERSION ZONE AND A HEATING ZONE, THE IMPROVEMENT WHICH COMPRISES: A PASSING A STREAM OF HOT FLUIDIZED PARTICLES FROM SAID HEATING ZONE TO A STREAM GENERATION ZONE; B. INTRODUCING A REFINERY WASTE WATER SODIUM INTO SAID STEAM GENERATION ZONE AND CONTACTING THE SAME WITH SAID HOT FLUIDIZED PARTICLES THEREBY VAPORIZING SAID REFINERY WASTE WATER STREAM TO STEAM, AND C. UTILIZING AT LEAST A PORTION OF THE RESULTING STEAM, WITHOUT FURTHER TREATMENT, IN SAID HYDROCARBON CONVERSION PROCESS.
Claim 2
Dependent Claim
92 words
IN A HYDROCARBON CONVERSION PROCESS WHEREIN A STREAM OF FLUIDIZED SOLID PARTICLES IS CIRCULATED BETWEEN A CONVERSION ZONE AND A HEATING ZONE, THE IMPROVEMENT WHICH COMPRISES: A PASSING A STREAM OF HOT FLUIDIZED PARTICLES FROM SAID HEATING ZONE TO A STREAM GENERATION ZONE; B. INTRODUCING A REFINERY WASTE WATER SODIUM INTO SAID STEAM GENERATION ZONE AND CONTACTING THE SAME WITH SAID HOT FLUIDIZED PARTICLES THEREBY VAPORIZING SAID REFINERY WASTE WATER STREAM TO STEAM, AND C. UTILIZING AT LEAST A PORTION OF THE RESULTING STEAM, WITHOUT FURTHER TREATMENT, IN SAID HYDROCARBON CONVERSION PROCESS.
Claim 3
Dependent Claim
33 words
The process of claim 1, wherein said waste water stream comprises non-volatile contaminants and wherein the non-volatile contaminants are deposited on said fluidized solid particles in said steam generation zone by said vaporization.
Claim 4
Dependent Claim
75 words
The process of claim 1, wherein said refinery waste water is sour water derived from a hydrocarbon conversion process which utilizes solid particles maintained in a fluidized state by a fluidizing gas comprising steam, said sour water comprising volatile contaminants, and wherein said sour water is converted to sour steam comprising said volatile contaminants and wherein at least a portion of said sour steam, including the volatile contaminants, is utilized in said hydrocarbon conversion process.
Claim 5
Dependent Claim
12 words
The process of claim 2, wherein said fluidized particles are catalytic particles.
Claim 6
Dependent Claim
12 words
The process of claim 2, wherein said fluidized particles are inert particles.
Claim 7
Dependent Claim
32 words
The process of claim 2, wherein said hydrocarbon conversion process is a catalytic cracking process and wherein said fluidized particles comprise catalyst particles and said heating zone is a catalyst regeneration zone.
Claim 8
Dependent Claim
14 words
The process of claim 2, wherein said hydrocarbon conversion process is a coking process.
Claim 9
Dependent Claim
18 words
The process of claim 7, wherein said fluidized solid particles comprise coke particles formed by said coking process.
Claim 10
Dependent Claim
115 words
In a coking process comprising a coking zone containing a fluidized bed of solid particles and a heating zone, and wherein a stream of fluidized particles is circulated between said coking zone and said heating zone, said particles being fluidized by a fluidizing gas comprising steam, the improvement which comprises: (a) passing a stream of hot fluidized particles from said heating zone to a steam generation zone; (b) introducing into said steam generation zone sour water comprising volatile contaminants and contacting said sour water with said hot fluidized particles to convert said sour water to sour steam, and (c) utilizing at least a portion of said sour steam as fluidizing gas in said coking process.
Claim 11
Dependent Claim
115 words
In a coking process comprising a coking zone containing a fluidized bed of solid particles and a heating zone, and wherein a stream of fluidized particles is circulated between said coking zone and said heating zone, said particles being fluidized by a fluidizing gas comprising steam, the improvement which comprises: (a) passing a stream of hot fluidized particles from said heating zone to a steam generation zone; (b) introducing into said steam generation zone sour water comprising volatile contaminants and contacting said sour water with said hot fluidized particles to convert said sour water to sour steam, and (c) utilizing at least a portion of said sour steam as fluidizing gas in said coking process.
Claim 12
Dependent Claim
15 words
The process of claim 9, wherein said sour water is derived from said coking process.
Claim 13
Dependent Claim
15 words
The process of claim 9, wherein said coking process additionally comprises a coke gasification zone.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |