Flare Tip Temperature Monitoring for Steam-Efficient Combustion
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Solution Overview
Problem
Flare tips in hydrocarbon production and processing face challenges in monitoring and maintaining optimal operating conditions, particularly in managing temperature and steam usage, which affects their lifespan and efficiency.
Innovation Solution
A method and system that monitor and control flare tip parameters, including mass flow rate and composition, to determine adiabatic and theoretical flame temperatures, and adjust steam and air flow using a controller to maintain these parameters within specified ranges, thereby extending flare tip lifespan and enhancing combustion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the flare tip burns hydrocarbons at high temperature to ensure complete combustion, then combustion efficiency is improved, but the flare tip material degrades faster reducing service life
Solution Approach 1:
The patent applies parameter changes by introducing steam injection to modify the thermal parameters at the flare tip. The steam raises the flame temperature to optimize combustion efficiency while simultaneously controlling the thermal load on the flare tip material through controlled condensation, thereby extending service life
Solution Approach 2:
Steam is introduced as an intermediary substance that mediates between the hydrocarbon flame and the flare tip material. The steam absorbs excess heat through phase change and chemical reactions, protecting the flare tip from direct exposure to extreme temperatures while maintaining efficient combustion
2Duration of action of stationary object
If steam is injected to control flame temperature and extend flare tip life, then service life is improved, but steam consumption increases energy usage
Solution Approach 1:
The system employs feedback control by continuously monitoring flare tip temperature and adjusting steam injection rates accordingly. The controller modulates steam flow to maintain optimal temperature ranges, ensuring extended service life while minimizing unnecessary steam consumption and energy waste
Solution Approach 2:
The steam injection system is made dynamic through automated control that adjusts steam flow rates in real-time based on operating conditions. This dynamic adjustment optimizes the balance between protecting the flare tip and minimizing energy consumption
3Productivity
If real-time monitoring of flare parameters is implemented, then combustion control is improved, but system complexity increases
Solution Approach 1:
The monitoring system is designed with multi-functionality, where a single integrated controller performs multiple tasks including temperature monitoring, steam injection control, and combustion optimization. This universal approach improves combustion control while minimizing system complexity by consolidating functions
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 solution allows for effective flare monitoring, extended service life, reduced steam and air requirements, and improved combustion with decreased energy consumption and CO2 emissions.
Implementation Method 1
A second set of parameters is determined based on the first set of flare tip parameters. The second set of parameters includes an adiabatic flame temperature or a theoretical flame temperature.
Implementation Method 2
An actuable device is configured to add a second mass flow to a flare stream... The actuable device includes a steam supply
Implementation Method 3
a flare tip is used to safely burn excess hydrocarbons during production or process irregularities. The flame at the flare tip burns at a temperature high enough that the flame cannot often be directly measured
Data Source
AI summary
A data stream indicative of a first set of flare tip parameters is received. A second set of parameters is determined based on the first set of flare tip parameters. A control signal is sent to an actuable device based on the first set of parameters and the second set of parameters. The actuable device is configured to maintain at least one parameter of the first set of parameter and the second set of parameters within a specified range.