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Residue hydrocracking processing

A technology for hydrocracking and residual oil hydrogenation, applied in the field of residual oil and other heavy hydrocarbon fraction hydrocracking, can solve the problems of being limited to about 35% to 40%, limited conversion rate, etc.

Active Publication Date: 2015-10-28
LUMMUS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conversion rates obtainable by these various methods are limited
For example, an RDS unit alone can produce 1 wt% sulfur fuel from a high sulfur residue, but the conversion is typically limited to about 35% to 40%

Method used

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  • Residue hydrocracking processing
  • Residue hydrocracking processing
  • Residue hydrocracking processing

Examples

Experimental program
Comparison scheme
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Embodiment

[0047] In the following example, a 40k BPSD Arabian heavy vacuum residue was first processed in the SDA unit at 73 vol% lift. The properties of the resulting DAO and SDA pitches are summarized in Table 1. The DAO contained 4.27wt% sulfur, 10wt% CCR and 47wppm Ni+V and was then processed in an RDS unit to reduce the sulfur content of the feed by 85 to 87wt%. At the same time the resid fraction in the feed was converted by 35 to 45%. In this example, the RDS effluent was then hydrocracked in a single ebullating bed reactor that was closely coupled to the RDS reactor, increasing the overall conversion to 85 vol% and increasing the overall HDS to 91.8 wt%. The resulting unconverted oil (UCO) was estimated to have a sulfur content and API degree of approximately 1.0 wt% and 11.9°, respectively. It is envisaged that the UCO from this reaction system will meet the low sulfur fuel oil specification without adding any additional cutterstock. The overall space velocity required to a...

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Abstract

A process for upgrading residuum hydrocarbons and decreasing tendency of the resulting products toward asphaltenic sediment formation in downstream processes is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a hydroconversion catalyst in a hydrocracking reaction zone to convert at least a portion of the residuum hydrocarbon fraction to lighter hydrocarbons; recovering an effluent from the hydrocracking reaction zone; contacting hydrogen and at least a portion of the effluent with a resid hydrotreating catalyst; and separating the effluent to recover two or more hydrocarbon fractions.

Description

technical field [0001] Embodiments disclosed herein relate generally to hydroconversion processes, including resid and other heavy hydrocarbon fraction hydrocracking processes. More specifically, embodiments disclosed herein relate to solvent deasphalting of resid hydrocarbon feedstocks, processing of the resulting deasphalted oil in a resid desulfurization unit and a resid hydrocracking unit, and in a separate resid hydrocracking unit. Bitumen from the solvent deasphalting unit is processed in the unit. Background technique [0002] With the steady increase in worldwide demand for gasoline and other distillate refined products such as kerosene, jet fuel and diesel, there has been a clear trend towards converting high boiling compounds to lower boiling compounds. To meet the increasing demand for distillate fuels, refiners have investigated reactions such as hydrocracking, resid desulfurization (RDS) and solvent deasphalting (SDA) to convert resid, vacuum gas oil (VGO) and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/04C10G21/00
CPCC10G65/14C10G1/06C10G65/00C10G65/02C10G65/12C10G67/00C10G67/0454C10G67/0463C10G67/049C10G2300/107C10G2300/1077C10G21/14C10G67/04
Inventor 马里奥·C·巴尔达萨里乌伊奥·K·穆克吉安·玛丽·奥尔森马尔温·I·格林
Owner LUMMUS TECH INC