Concentrated Hydrogen Peroxide Transport Container with Pressure Relief

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Solution Overview

Problem

There is a lack of commercially available transport containers that meet the necessary transport approval and comply with packaging instructions for transporting concentrated hydrogen peroxide in volumes ranging from 65 to 500 liters.

Innovation Solution

A transport container comprising a cuboid support frame and a liquid container made of pure aluminum, chromium-nickel steel, nickel-based alloy, or polyolefin-coated steel, equipped with a pressure equalization device, pressure relief valve, and closable openings for filling and removing hydrogen peroxide, ensuring safe and efficient transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If conventional transport containers (aluminum cylinders, tank containers, or tank trucks) are used for concentrated hydrogen peroxide, then small quantities or large quantities can be transported, but no commercially available container exists for volumes of 65 to 500 liters that meets transport approval requirements and packaging instruction P501 of the ADR

Engineering Contradiction:
Improvetransport volumeVSAvoidavailability for specific volume range
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The support frame is divided into multiple receptacles (first, second, and optionally third receptacles) that can hold different quantities of hydrogen peroxide. This segmentation allows the container system to adapt to various transport volume requirements by selectively using one or multiple receptacles, thereby filling the gap for 65-500 liter transport volumes that were previously unavailable.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a liquid container is made of pure aluminum, then it is suitable for transporting concentrated hydrogen peroxide, but the container must be pretreated by etching processes to remove metal from the inner wall

Engineering Contradiction:
Improvechemical compatibilityVSAvoidpretreatment complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The liquid container undergoes pretreatment processes (etching, passivation, or coating) before being put into service for transporting concentrated hydrogen peroxide. This preliminary action prepares the inner surface to be chemically compatible with hydrogen peroxide, preventing unwanted reactions while maintaining the reliability of the container for long-term use.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If a pressure equalization device is added to the liquid container, then pressure equilibrium can be maintained during transport, but the device complexity increases

Engineering Contradiction:
Improvepressure stabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A pressure equalization device is introduced as an intermediary component between the liquid container interior and the external environment. This device mediates pressure differences by allowing air to enter or escape the receptacles, thereby maintaining pressure equilibrium during transport without requiring complex active control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If a pressure relief valve is installed on the liquid container, then overpressure can be relieved to prevent leakage or rupture, but the device complexity and potential leakage points increase

Engineering Contradiction:
Improveoverpressure protectionVSAvoidvalve mechanisms
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

A pressure relief valve is installed on the liquid container to provide preliminary protection against overpressure conditions. The valve is pre-configured to open at a specific pressure threshold, automatically relieving excess pressure before it can cause leakage or rupture of the container, thereby preventing harmful outcomes.

Inventive Principle:
Principle #9Preliminary anti-action

5Adaptability or versatility

If multiple receptacles are arranged in the support frame, then flexibility in transport volume is improved, but the weight of the stationary object increases

Engineering Contradiction:
Improvevolume flexibilityVSAvoidsupport frame weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of stationary object

Solution Approach 1:

The support frame is segmented into multiple receptacles that can be selectively filled with hydrogen peroxide. This segmentation provides flexibility in transport volume by allowing the user to use only the necessary number of receptacles, thereby improving adaptability while the modular design helps manage the overall weight distribution.

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

The solution provides a safe and efficient means to transport concentrated hydrogen peroxide by maintaining pressure equilibrium, preventing leakage, and distributing weight evenly, thus ensuring the container's structural integrity and safety during transport.

Implementation Method 1

a pressure equalization device (3) arranged on the top side of the liquid container (2), said pressure equalization device allowing gas to pass between the interior of the container and the atmosphere surrounding the liquid container (2) and allowing pressure equalization at a pressure difference of less than 50 mbar

Methodology Applied
Scientific EffectPressure equalization: Pressure Gradient

Implementation Method 2

a pressure relief valve (4) arranged on the top of the liquid container (2)

Methodology Applied
Scientific EffectPressure relief: Pressure Gradient

Data Source

PatentEP4041656B1Transport container for concentrated hydrogen peroxide
Publication Date: 2025.09.10 EVONIK OPERATIONS GMBH
  • EP4041656B1 patent drawingFigure 1~2

AI summary

The transport container for concentrated hydrogen peroxide comprises: a cuboid carrier frame; a liquid container provided inside the carrier frame (1) and frictionally connected thereto, said container having an internal volume of between 65 and 500 l and consisting of pure aluminium, chromium-nickel steel, a nickel-based alloy, or a steel coated with a polyolefin or clad on the inner face; a pressure equalisation device and a pressure relief valve, both of which are provided on the upper face of the liquid container; and at least one sealable opening of the liquid container for the charging and/or removal of hydrogen peroxide.