Incinerator Temperature Setpoint Control by Feed Gas Flow
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Solution Overview
Problem
Conventional incinerator temperature control methods maintain a constant set point regardless of the feed stream flow rate, leading to increased fuel gas consumption and high operating costs.
Innovation Solution
Adjust the incinerator temperature set point based on the flow rate of the gas stream, proportional to the feed stream, to maintain efficient hydrogen sulfide conversion while reducing fuel gas usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the incinerator temperature set point is held constant regardless of feed stream flow rate, then the conversion of contaminants such as hydrogen sulfide is ensured, but the consumption of fuel gas increases leading to high operating costs
Solution Approach 1:
The temperature set point of the incinerator is made dynamic by adjusting it based on the flow rate of the feed stream. When the feed flow rate increases, the temperature set point is increased proportionally to maintain adequate contaminant conversion. When the feed flow rate decreases, the temperature set point is reduced to decrease fuel gas consumption. This dynamic adjustment resolves the contradiction between maintaining reliable contaminant conversion and reducing energy consumption.
Solution Approach 2:
The operating parameters of the incinerator, specifically the temperature set point, are changed based on the feed stream flow rate conditions. The control system continuously monitors the feed flow rate and adjusts the temperature set point parameter accordingly, allowing the system to adapt to varying operational conditions and optimize the balance between contaminant conversion efficiency and fuel gas consumption.
2Use of energy by moving object
If the incinerator temperature set point is adjusted proportionally to the feed stream flow rate, then fuel gas consumption is reduced, but the temperature control complexity increases
Solution Approach 1:
The temperature control system implements feedback by continuously monitoring the feed stream flow rate and using this information to adjust the temperature set point. The control system receives feedback about actual feed flow conditions and dynamically modifies the temperature set point proportionally, creating a closed-loop control mechanism that automates the balance between fuel consumption and conversion efficiency without requiring complex manual intervention.
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 method allows the incinerator to operate at lower temperatures, reducing fuel gas consumption and lowering operating costs while maintaining desired contaminant conversion.
Implementation Method 1
combusting at least a portion of the fuel gas to heat the incinerator
Implementation Method 2
oxidize at least a portion of the hydrogen sulfide to sulfur dioxide
Data Source
AI summary
A method for controlling a temperature of an incinerator may include determining a flow rate of a gas stream. The gas stream may be being passed from a sulfur recovery system to the incinerator. The method may include adjusting a target temperature of the incinerator. The target temperature of the incinerator is proportional to the flow rate of the gas stream. The method may include determining a temperature of the incinerator and adjusting the flow rate of a fuel gas being passed to the incinerator such that the temperature of the incinerator approaches the target temperature of the incinerator.