Additive Manufactured Metallic Reactor with Monolithic Support Grid

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Solution Overview

Problem

Conventional reactors face limitations in thermal and mechanical strength, especially when handling demanding reactions with high pressures and temperature fluctuations, leading to reduced operational safety and efficiency.

Innovation Solution

An additively manufactured reactor with a monolithically connected housing and pipeline, featuring a support grid between the inner and outer walls, and an open-pored metallic foam cladding for enhanced thermal and mechanical resistance, along with a cascaded design for optimized chemical processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional reactors are used for demanding reactions with high pressures and temperature fluctuations, then the reactors can handle these conditions, but their thermal and mechanical strength is pushed to limits and operational safety is reduced

Engineering Contradiction:
Improveoperational safetyVSAvoidthermal and mechanical strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The reactor combines metallic foam material with conventional pipeline materials to create a composite structure. The metallic foam provides enhanced thermal and mechanical strength while the pipeline material maintains chemical resistance and operational integrity under high pressure and temperature conditions.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The metallic foam is applied locally around the pipeline in specific zones where thermal and mechanical stress is highest, rather than throughout the entire reactor. This localized reinforcement provides strength where needed while maintaining overall reactor performance and safety.

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If additive manufacturing is used to create monolithic reactor components, then complex piping systems can be manufactured in a single component, but thermal and mechanical resistance is reduced under high-pressure and high-temperature conditions

Engineering Contradiction:
Improvemonolithic component manufacturingVSAvoidthermal and mechanical resistance
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The additive-manufactured metallic foam structure is combined with traditional pipeline materials to create a composite system that leverages the manufacturing flexibility of additive processes while achieving the thermal and mechanical resistance of proven materials under high-pressure and high-temperature conditions.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The metallic foam's porous structure is designed to provide structural support and thermal management while allowing for efficient heat transfer and maintaining strength-to-weight ratio in the monolithic reactor component.

Inventive Principle:
Principle #31Porous materials

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 improved thermal and mechanical resistance, enabling safer and more efficient operation under high-pressure and temperature conditions, while the cascaded design enhances reaction yield and process control.

Implementation Method 1

the cooling medium evaporates again on the surfaces of the metallic foam, thus extracting heat energy from the pipeline

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

exclusively through material transitions created, for example, by melting processes or diffusion-controlled sintering

Methodology Applied
Scientific EffectMelting: Melting

Implementation Method 3

exclusively through material transitions created, for example, by melting processes or diffusion-controlled sintering

Methodology Applied
Scientific EffectSintering: Sintering

Data Source

PatentEP4438206A1Additive manufactured metallic reactor, cascade of reactors, method of manufacturing a reactor and computer program
Publication Date: 2024.10.02 SIEMENS AG
  • EP4438206A1 patent drawingFigure 1
  • EP4438206A1 patent drawingFigure 2
  • EP4438206A1 patent drawingFigure 3

AI summary

The invention relates to an additively manufactured metallic reactor (2) with a housing (4) and at least one pipeline (6) arranged in the housing (4), wherein the housing (4) and the pipeline (6) are monolithically connected to one another, and the housing (4) has at least one pipeline inlet (8) and one pipeline outlet (10) as well as at least one pipeline feed access (9). The invention is characterized in that a support grid (18) monolithically connected to both walls is arranged in an interior space (13) of the housing (4) between an inner wall (16) of the housing and an outer wall (12) of the pipeline (6).