Annular Shroud Burner Layout for High-Temperature Oxy-Combustion

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Solution Overview

Problem

Existing oxy-combustion technologies face challenges in efficiently producing high flame temperatures while minimizing damage to burner components and furnace surfaces due to high heat fluxes, and are not easily adaptable to replace air-fueled combustion systems without significant modifications and high costs.

Innovation Solution

The development of an annular shroud burner design that utilizes undiluted oxygen and minimal flue gas recycle, with a conical quarl and concentric conduits for fuel, oxygen, and recycled flue gas streams, to create a stable high flame temperature and shield critical areas from extreme temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional oxy-combustion burners are used to achieve high flame temperatures, then carbon capture efficiency is improved, but damage to burner components and furnace surfaces occurs due to high heat fluxes

Engineering Contradiction:

Improvecarbon capture efficiencyVSAvoidheat flux damage to components

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The burner is divided into multiple concentric zones with different functions: an inner combustion zone for high-temperature oxidation and an outer annular shroud zone for cooling and heat flux management. This segmentation allows the system to simultaneously achieve high flame temperatures for efficient carbon capture while protecting components from excessive heat exposure through the protective shroud layer

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The annular shroud acts as an intermediary protective layer between the high-temperature combustion zone and the furnace components. It absorbs and redistributes heat flux, preventing direct exposure of critical components to extreme temperatures while maintaining the high-temperature environment needed for effective oxy-combustion and carbon capture

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If air-fueled combustion systems are replaced with oxy-combustion systems, then carbon capture cost effectiveness is improved, but significant modifications and high costs are required

Engineering Contradiction:

Improvecarbon capture cost effectivenessVSAvoidsystem modification requirements

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The annular shroud burner design serves multiple functions simultaneously: it enables high-temperature oxy-combustion for carbon capture, protects furnace components from heat damage, and can be integrated with existing burner infrastructure. This multi-functionality reduces the need for extensive separate modifications and lowers overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The annular shroud is nested around the central combustion zone, creating a compact integrated structure. This nested design allows the protective cooling function to be incorporated within the existing burner footprint, minimizing the need for additional space and reducing modification complexity when transitioning from air-fueled to oxy-combustion systems

Inventive Principle:

Principle #7Nested doll (Nesting)

3Use of energy by moving object

If high flame temperatures are produced in oxy-combustion, then combustion efficiency is improved, but component damage occurs due to extreme temperatures

Engineering Contradiction:

Improvecombustion efficiencyVSAvoidflame temperature

Core Design Contradiction:

Use of energy by moving objectVSTemperature

Solution Approach 1:

The burner design creates different local thermal environments: the inner combustion zone maintains high temperatures for efficient combustion, while the outer annular shroud zone provides a cooler protective environment. This local quality differentiation allows the system to simultaneously achieve high combustion efficiency while protecting components from temperature-related damage

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The annular shroud burner effectively maintains high flame temperatures above 4,000°F while preventing damage to components and enhancing carbon capture and sequestration efficiency, reducing capital costs, and improving system performance.

Implementation Method 1

The annular shroud burner effectively maintains high flame temperatures above 4,000°F

Methodology Applied

Scientific EffectCombustion: Combustion

Implementation Method 2

with a conical quarl and concentric conduits for fuel, oxygen, and recycled flue gas streams, to create a stable high flame temperature and shield critical areas from extreme temperatures

Methodology Applied

Scientific EffectThermal shielding: Thermal Insulation

Data Source

PatentUS20260036299A1Combustion system comprising an annular shroud burner

Publication Date: 2026.02.05 JUPITER OXYGEN CORP

AI summary

A carbon sequestration system includes a furnace having an oxy-combustion burner, a mill configured to receive a fuel and to provide the fuel to the oxy-combustion burner, a waste heat recovery exchanger configured to receive a flue gas from the furnace, the flue gas ultimately supplied to one or more of an overfire air port of the furnace, the oxy-combustion burner, the mill, and a CO2 purification unit, the CO2 purification unit configured to produce a purified CO2 stream.