Upgrading residues, heavy oils and plastics

Inactive Publication Date: 2018-08-30
IGNITE ENERGY RESOURCES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]treating a mixture of the oil and an aqueous solvent at a temperature of more than 370° C. and at a pressure of more than 20 bar for a suitable time period, and depressurising the mixture t

Problems solved by technology

Plastic waste material is poorly biodegradable and represents an increasing environmental problem.
The majority of plastic waste is still used in landfill meaning that a significant amount of processed raw material and energy is lost/not utilised.
While some technologies have been moderately successful in this endeavour, in many cases heavier oil components and residues remain as waste and

Method used

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  • Upgrading residues, heavy oils and plastics
  • Upgrading residues, heavy oils and plastics
  • Upgrading residues, heavy oils and plastics

Examples

Experimental program
Comparison scheme
Effect test

Example

Example 1: Oil Residue Upgrading

Summary

[0275]A technology was developed to upgrade low-value feed stocks to high-value products. One such feed stock is the lube oil residue (LOR) gathered from the bottoms fraction of a vacuum distillation plant for recycling used lube oil. This residue is made up of the non-distillable fraction of the oil and contains contaminating components retained in the oil through use and additive residues.

[0276]Lube oil residue was successfully processed. About 70% of the resulting upgraded LOR could be distilled to a strongly upgraded oil product after treatment. By contrast only about 20% of the as received LOR could be distilled under comparable conditions.

[0277]The results confirm that supercritical water upgrading of LOR using the disclosed methods provides substantial benefits:

(i) A large fraction of the LOR is cracked to lighter products, leading to hydrocarbon oils boiling in the diesel and heavy gas oil ranges;

(ii) The residue remaining after upgradi...

Example

Example 2: Oil Residue Upgrading in Combination with Polymers

Introduction

[0311]Example 2 is a prophetic Example.

[0312]Plastic and / or rubber and / or other polymeric material (polymers) may be used in combination with heavy oil components of the feedstock mixture for cracking in the reactor. Accordingly, plastic and / or rubber and / or other polymeric material (polymers) may be added to the feedstock mixture for cracking in the reactor according to the methods described below.

[0313]The polymers may be characterised in part by their glass transition temperatures Tg and / or their melting temperatures Tm in the case of semi-crystalline or crystalline polymers. Above Tg polymers generally exhibit rubbery characteristics. Non-limiting examples of glass transition temperatures and melting temperatures are given below in Table 7.

TABLE 7Tg and Tm temperatures of exemplary polymersPolymerTm ° C.Tg ° C.Polyethylene (PE)135−68Polypropylene (PP)176−8Polystyrene (PS)240100Poly(methyl methacrylate) PMMA...

Example

[0339]Example 3 is a prophetic Example.

[0340]Plastic and / or rubber and / or other polymeric material (polymers) may be used as a feedstock for cracking in the reactor in the absence of heavy oil components. Accordingly, plastic and / or rubber and / or other polymeric material (polymers) may be used as a feedstock for cracking in the reactor according to the methods described below.

[0341]The polymers may be characterised in part by their glass transition temperatures Tg and / or their melting temperatures Tm in the case of semi-crystalline or crystalline polymers. Above Tg polymers generally exhibit rubbery characteristics. Non-limiting examples of glass transition temperatures and melting temperatures are given above in Table 7.

[0342]Non limiting examples of polymers, plastics and rubbers that can be treated according to the methods of Examples 3-X include Polyethylene (PE), Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), Polypropylene (PP), Polyester, Poly(ethylene tere...

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Abstract

The present invention relates to upgrading heavy petroleum oils, their residues, and/or polymeric materials. More specifically the present invention relates to a method for upgrading heavy petroleum oils, their residues, and/or polymeric materials by hydrothermal treatment with an aqueous solvent.

Description

INCORPORATION BY CROSS-REFERENCE[0001]The present application claims priority from Australian provisional patent application number 2015902210 filed on 11 Jun. 2015 and Australian provisional patent application number 2015904339 filed on 22 Oct. 2015. The entire content of each provisional application from which the present application claims priority is incorporated herein by cross-reference.TECHNICAL FIELD[0002]The present invention relates to upgrading heavy petroleum oils, their residues, and / or polymeric materials. More specifically the present invention relates to a method for upgrading heavy petroleum oils, their residues, and / or polymeric materials by hydrothermal treatment with an aqueous solvent.BACKGROUND[0003]As light crude reservoirs become scarce and long term oil prices continue to rise, much effort has focussed on alternative sources such as the generation of bio-oils from natural feedstocks (e.g. plant material) and waste materials (e.g. sewerage, municipal waste et...

Claims

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Application Information

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IPC IPC(8): C10G1/10C10G1/06C10G31/06C10G31/08C10G53/02C10G9/00C10G55/04
CPCC10G1/10C10G1/065C10G31/06C10G31/08C10G53/02C10G9/00C10G55/04C10G2300/302C10G2300/308C10G31/10Y02P30/20
Inventor HUMPHREYS, LEONARD JAMESROWLANDS, WILLIAM NEIL
Owner IGNITE ENERGY RESOURCES LTD
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