Off-gas Conditioning System for Real-time Soil Remediation Monitoring

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Solution Overview

Problem

Current soil remediation processes, particularly thermal remediation, face inefficiencies due to the need for offline testing and sample analysis, which disrupts operations and increases costs, as they lack real-time monitoring capabilities.

Innovation Solution

An off-gas conditioning system that includes a source of off-gas connected to testing ports for real-time measurement of temperature, pressure, flow rate, and humidity, with vapor-liquid separators for particulate removal and cooling, and analyzers for chemical compound analysis, allowing for continuous monitoring and data acquisition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If offline testing and sample analysis are used for soil remediation monitoring, then measurement precision is achieved, but productivity decreases due to operational disruption and increased costs

Engineering Contradiction:
Improvecontaminant level measurementVSAvoidremediation operation efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces offline mechanical sampling and laboratory analysis with online analytical instruments that directly analyze off-gas in real-time. Gas chromatographs, flame ionization detectors, and photoionization detectors are integrated into the off-gas handling system, eliminating the need to stop operations for sampling and lab analysis, thus maintaining measurement precision while dramatically improving productivity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary off-gas handling system that captures volatile contaminants during remediation and directs them through a series of separators and analyzers. This intermediary system allows continuous monitoring of contaminant levels without interrupting the primary remediation operations, resolving the contradiction between precise measurement and operational productivity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If multiple vapor-liquid separators and analyzers are added for real-time monitoring, then productivity improves through continuous operation, but device complexity increases

Engineering Contradiction:
Improvecontinuous remediation operationVSAvoidmonitoring system structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into an integrated off-gas handling system. Vapor-liquid separators, condensers, and analytical instruments are combined into a single coordinated system that processes off-gas through multiple stages. This merging approach enables continuous real-time monitoring and maintains productivity while managing complexity through functional integration rather than separate discrete components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the off-gas treatment process into distinct functional stages: initial vapor-liquid separation, condensation, particulate removal, and chemical analysis. Each stage handles a specific aspect of contaminant removal and monitoring. This segmentation allows the system to process complex contaminated off-gas through manageable sequential steps, improving productivity while organizing complexity into modular functional units

Inventive Principle:
Principle #1Segmentation

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 real-time monitoring and efficient operation by continuously analyzing off-gas composition, ensuring optimal remediation conditions and reducing downtime and costs by providing immediate feedback on contaminant levels.

Implementation Method 1

at least one of the first or second vapor-liquid separators includes a heat-exchanger for cooling the off-gas

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

a first vapor-liquid separator in communication with and downstream of the source of off-gas

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 3

a first vapor-liquid separator in communication with and downstream of the source of off-gas

Methodology Applied
Scientific EffectVapor-liquid separation: Phase Change

Implementation Method 4

at least one of the first or second vapor-liquid separators includes a particulate filter for removing particulates from the off-gas

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 5

analyzer for analyzing said off-gas for specific chemical compounds

Methodology Applied
Scientific EffectGas chromatography: Chromatography

Implementation Method 6

analyzer for analyzing said off-gas for specific chemical compounds

Methodology Applied
Scientific EffectSpectroscopy: Absorption Spectroscopy

Data Source

PatentUS10874965B2Off-gas conditioning system and method
Publication Date: 2020.12.29 GEOSOLUTIONS
  • US10874965B2 patent drawing
  • US10874965B2 patent drawing
  • US10874965B2 patent drawing

AI summary

An off-gas conditioning system includes a source of off-gas, at least one testing port, in communication with the source of off-gas wherein the testing port is connected to a meter capable of testing at least one metric selected from the group consisting of temperature, pressure, flow rate, and humidity. A first vapor-liquid separator in communication with and downstream of the source of off-gas, a second vapor liquid separator in communication with and downstream of the first vapor liquid separator, wherein at least one of the first or second vapor-liquid separators includes a heat-exchanger for cooling the off-gas, and wherein at least one of said first or second vapor liquid separators includes a particulate filter for removing particulates from the off-gas. at least one testing port, downstream of the second vapor-liquid separator in communication with at least one analyzer for analyzing said off-gas for specific chemical compounds.