Distillation Tower Radiation Detection for Solid Adherence Control
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Solution Overview
Problem
Conventional distillation methods face challenges in separating carbon dioxide from methane at cryogenic temperatures, leading to solidification issues and adherence of contaminants to equipment, which interferes with the separation process in natural gas processing.
Innovation Solution
A method and device that utilize a controlled freeze zone in a distillation tower, incorporating a radiation source and detector to monitor radiation levels and determine if solids have adhered to mechanical components, allowing for effective separation of contaminants from hydrocarbons by forming and melting solids under controlled conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional distillation methods are used to separate carbon dioxide from methane at cryogenic temperatures, then separation efficiency is improved, but solidification of CO2 and adherence to equipment occurs
Solution Approach 1:
The patent replaces mechanical cleaning methods with radiation detection and heating. Radiation detectors monitor for solid adherence in real-time, and when detected, radiation heating elements melt the solids without mechanical intervention, solving the adherence problem while maintaining separation efficiency
Solution Approach 2:
The patent dynamically changes temperature parameters in the controlled freeze zone. By precisely controlling temperature to remain above the solidification point of CO2 while maintaining cryogenic conditions for separation, the system prevents solidification and adherence while achieving effective contaminant removal
2Reliability
If radiation sources are added to prevent solid adherence, then equipment operation reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the radiation detection and radiation heating functions into a single integrated system. The same radiation infrastructure serves dual purposes: detecting solid adherence and preventing/melting it, thereby improving reliability without proportionally increasing complexity
Solution Approach 2:
The system uses radiation detectors to automatically detect when solids adhere to equipment, triggering radiation heating elements to melt them. This self-monitoring and self-cleaning mechanism improves reliability while minimizing the need for external intervention and complex control systems
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
This approach enables efficient separation of contaminants from hydrocarbons, preventing adherence and ensuring proper operation of the distillation tower, thereby producing high-quality hydrocarbon products.
Implementation Method 1
detecting radiation emitted by the first radiation source as a first radiation level; detecting radiation emitted by the first radiation source as a second radiation level after detecting the first radiation level
Implementation Method 2
forming solids in a controlled freeze zone section of the distillation tower
Implementation Method 3
The separation of contaminants from hydrocarbons is difficult and consequently significant work has been applied to the development of hydrocarbon/contaminant separation methods. These methods can be placed into three general classes: absorption by solvents (physical, chemical and hybrids), adsorption by solids, and distillation
Data Source
AI summary
The present disclosure provides a method for separating a feed stream in a distillation tower. The method may include forming solids in a controlled freeze zone section of the distillation tower; emitting radiation from a first radiation source in the controlled freeze zone section while the controlled freeze zone section forms no solids; detecting radiation emitted by the first radiation source as a first radiation level; detecting radiation emitted by the first radiation source as a second radiation level after detecting the first radiation level; and determining whether the solids adhered to at least one of on and around a first mechanical component included in the controlled freeze zone section based on the first radiation level and the second radiation level.