Mobile Selective Catalyst Reduction System for Remote Gas Turbines

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Solution Overview

Problem

Existing selective catalyst reduction systems for gas turbines are inefficient at high temperatures and require substantial construction and skilled labor, making them unsuitable for remote locations with limited resources.

Innovation Solution

A mobile selective catalyst reduction system comprising a first trailer with an ammonia delivery system and a tempering air system, and a second trailer with a selective catalyst reduction section, allowing for quick assembly and connection to a gas turbine engine, utilizing ammonia injection and tempering air to reduce nitrogen oxide emissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If selective catalyst reduction technology is applied to simple cycle turbine exhaust, then nitrogen oxide emissions can be reduced, but substantial construction activities and skilled labor are required which make the system unsuitable for remote locations

Engineering Contradiction:
Improvenitrogen oxide emissionsVSAvoidconstruction and assembly requirements
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The SCR system is divided into separate modular components (catalyst assembly, ammonia injection system, tempering air system, exhaust duct) that can be transported independently and assembled quickly at the remote location, eliminating the need for substantial construction activities

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system is designed to be mobile rather than fixed, with components mounted on transportable structures that can be delivered by conventional transport methods and quickly deployed, providing adaptability to remote locations with limited construction resources

Inventive Principle:
Principle #15Dynamics

2Object-generated harmful factors

If selective catalyst reduction system is assembled at remote location, then emissions control can be implemented, but limited skilled labor availability increases construction time and expense

Engineering Contradiction:
Improvenitrogen oxide emissionsVSAvoidassembly and construction time
Core Design Contradiction:
Object-generated harmful factorsVSLoss of time

Solution Approach 1:

All system components are pre-assembled, pre-tested, and pre-mounted on transportable structures at the manufacturing location before shipment, so that minimal assembly work is required at the remote location, significantly reducing construction time and skilled labor requirements

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system is segmented into transportable modules that can be assembled in a simplified sequence at the remote location, reducing the complexity and time of on-site construction activities

Inventive Principle:
Principle #1Segmentation

3Object-generated harmful factors

If ammonia reagent delivery system and catalyst layers are installed, then nitrogen oxide conversion can occur, but the system becomes unsuitable for transport to remote locations

Engineering Contradiction:
Improvenitrogen oxide conversion efficiencyVSAvoidtransportability
Core Design Contradiction:
Object-generated harmful factorsVSAdaptability or versatility

Solution Approach 1:

The catalyst assembly and ammonia delivery system are separated into discrete, transportable units that can be moved by conventional transport methods to remote locations and then assembled together, maintaining both transportability and functional integrity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from a fixed installation to a mobile configuration, with all components designed for transport and quick deployment, enabling adaptability to various remote locations while maintaining full functional capability

Inventive Principle:
Principle #15Dynamics

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

Enables efficient nitrogen oxide emission control in remote locations with reduced time and expense by simplifying the assembly and deployment of the system, ensuring effective emissions reduction.

Implementation Method 1

passing the combustion gas stream through a catalyst bed so as to absorb selectively the nitrogen oxides and the reducing agent

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

The absorbed components undergo a chemical reaction on the catalyst surface

Methodology Applied
Scientific EffectCatalysis: Catalysis

Data Source

PatentUS10634029B2Mobile selective catalyst reduction system
Publication Date: 2020.04.28 GENERAL ELECTRIC TECH GMBH
  • US10634029B2 patent drawing
  • US10634029B2 patent drawing
  • US10634029B2 patent drawing

AI summary

The present application provides a mobile selective catalyst reduction system for use at a remote location. The mobile selective catalyst reduction system may include a first trailer with an ammonia delivery system and a tempering air system mounted thereon in whole or in part and a second trailer with a selective catalyst reduction section mounted thereon in whole or in part. The ammonia delivery system, the tempering air system, and/or the selective catalyst reduction section are permanently mounted on the first trailer or the second trailer for use at the remote location.