VIS breaking heavy crude oils for pumpability
Patent
·
OSTI ID:7017101
This patent describes a method of reducing the viscosity of untreated crude oil. It comprises: vis-breaking in a reactor a first portion of the untreated crude oil with a recycled stream to produce a partially cracked residuum of the untreated oil; mixing the partially cracked residuum of the untreated oil with a second portion of the untreated oil to quench cracking and producing a first mixture; separating gas, vapor, and liquid by flashing from the mixture; condensing the gas and vapor obtained to produce liquid hydrocarbons and gas; splitting the liquid obtained into first and second streams thereof; passing the first stream obtained for us as the recycled stream in the first step; reacting coke produced in the first step with superheated steam to produce a hydrogen-containing gas during regeneration cycle to the reactor; and mixing the hydrogen-containing gas with the first stream obtained in the fifth step prior to vis-breaking in the first step.
- Assignee:
- NOV; NOV-90-006397; EDB-90-075544
- Patent Number(s):
- A; US 4883582
- Application Number:
- PPN: US 7-164861A
- OSTI ID:
- 7017101
- Country of Publication:
- United States
- Language:
- English
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