Rotating Particulate Collection Surface for Syngas Treatment
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Solution Overview
Problem
Syngas produced in gasifiers often contains ash and particulate matter that interferes with downstream equipment operation in IGCC power plants and coal-to-chemicals plants, leading to reduced efficiency and increased maintenance costs due to particulate accumulation in syngas receivers like convective syngas coolers.
Innovation Solution
A particulate removal system with a rotating particulate collection surface within a shell that adheres and separates particulates from syngas as it rotates, generating a treated syngas and a particulate flow, utilizing a fluid sump and scraper to enhance particulate collection and removal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If syngas is used directly in downstream equipment, then the system is simpler and requires less maintenance, but particulate matter accumulates in syngas receivers causing reduced efficiency and increased maintenance costs
Solution Approach 1:
The particulate removal system performs preliminary separation of particulates from syngas before the syngas enters downstream equipment. The rotating particulate collection surface continuously removes particulates in advance, preventing accumulation in syngas receivers and maintaining equipment reliability without requiring complex downstream modifications.
Solution Approach 2:
The invention extracts and removes particulate matter from the syngas stream using a rotating particulate collection surface that separates particulates from the gas flow. This extraction occurs at the source before syngas enters downstream equipment, simplifying the overall system by preventing particulate-related issues without requiring complex filtration or cleaning systems elsewhere.
2Reliability
If a particulate removal system is implemented, then particulate accumulation in syngas receivers is reduced, but the system complexity increases
Solution Approach 1:
The particulate collection surface is designed to rotate continuously, dynamically adapting to varying syngas flow conditions and particulate loads. This dynamic rotation ensures consistent particulate removal efficiency while maintaining a relatively simple mechanical structure, improving equipment availability without proportionally increasing system complexity.
Solution Approach 2:
The rotating particulate collection surface operates continuously without requiring external intervention or complex control systems. The self-rotating mechanism automatically separates and removes particulates as syngas flows through the system, maintaining high equipment availability while keeping the particulate removal system mechanically simple and easy to operate.
3Productivity
If particulates are removed from syngas, then downstream equipment efficiency is improved, but energy consumption increases
Solution Approach 1:
The particulate collection surface rotates periodically, creating alternating zones of high and low resistance to syngas flow. This periodic rotation efficiently captures particulates during the approach phase while minimizing energy consumption during the recovery phase, maintaining high syngas processing efficiency without excessive energy penalties.
Solution Approach 2:
The invention replaces complex mechanical filtration systems with a simpler rotating surface separation mechanism. This substitution reduces the energy required for particulate removal while maintaining effective syngas processing, as the rotating surface leverages the kinetic energy of the syngas flow rather than requiring high-energy filtration media or multiple processing stages.
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 system effectively reduces particulate accumulation in syngas receivers, increasing operational efficiency and reducing maintenance needs by minimizing particulate buildup, thereby enhancing the availability and efficiency of syngas processing equipment.
Implementation Method 1
adhering particulates from the syngas on the particulate collection surface
Implementation Method 2
separating the particulates from the particulate collection surface as the particulate collection surface rotates away from the syngas
Data Source
AI summary
A system includes a particulate removal system configured to remove particulates from a syngas to generate a treated syngas and a particulate flow. The particulate removal system includes a shell. The shell includes a syngas inlet configured to receive the syngas, a syngas outlet configured to discharge the treated syngas, and a particulate outlet configured to discharge the particulate flow. The particulate removal system also includes a particulate collection surface disposed in the shell and configured to adhere the particulates from the syngas to the particulate collection surface as the particulate collection surface rotates toward the syngas and to separate the particulates from the particulate collection surface as the particulate collection surface rotates away from the syngas.