Pyrolysis Reactor Counter-Current Condensation

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Solution Overview

Problem

Existing methods for pyrolysing organic materials, such as biomass and coal, face high capital and operating costs, inefficiencies in energy use, and challenges in scaling up from pilot to commercial production, limiting their viability and energy efficiency.

Innovation Solution

A method and apparatus that involves moving solid organic materials through a reaction chamber with a controlled temperature profile, where water vapor and volatile products are counter-currently moved to condense and separate into liquid water and oil products, allowing for efficient drying and pyrolysis, with a scalable and low-cost design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If known pyrolysis methods are used to produce valuable products from organic materials, then oil, gas and char can be produced, but capital costs and operating costs become excessively high for commercial scale

Engineering Contradiction:
Improveproduction of oil, gas and charVSAvoidcapital cost and operating cost
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The reaction chamber is divided into multiple temperature zones (first zone for drying at lower temperature, second zone for pyrolysis at higher temperature) along the length of the chamber. This segmentation allows different thermal processes to occur simultaneously in different regions, enabling commercial-scale production while controlling capital and operating costs through targeted heating rather than uniform high-temperature processing throughout the entire chamber.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If known pyrolysis methods are used for commercial scale production, then valuable products can be produced, but energy efficiency becomes insufficient for viability

Engineering Contradiction:
Improveproduction of oil, gas and charVSAvoidenergy efficiency
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The system maintains continuous operation with a sustained temperature profile throughout the reaction chamber, allowing organic material to continuously progress through drying and pyrolysis zones. This continuous process eliminates energy losses associated with intermittent heating and cooling cycles, significantly improving energy efficiency for commercial-scale production while maintaining steady output of oil, gas and char products.

Inventive Principle:
Principle #20Continuity of useful action

3Quantity of substance

If known pyrolysis methods are used, then valuable products can be produced, but scaling up from pilot to commercial production becomes problematic

Engineering Contradiction:
Improveproduction of oil, gas and charVSAvoidscalability from pilot to commercial scale
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The reaction chamber is configured as a horizontal elongated structure with zones arranged along its length, transforming the vertical processing approach of traditional pyrolysis equipment into a horizontal dimension. This dimensional change allows for easy scaling by simply extending the chamber length or adding modular sections, enabling seamless transition from pilot to commercial scale while maintaining the same effective processing zones and product yields.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Quantity of substance

If high temperature processing is applied to organic materials, then pyrolysis products are formed, but energy consumption increases

Engineering Contradiction:
Improveformation of pyrolysis productsVSAvoidenergy consumption
Core Design Contradiction:
Quantity of substanceVSLoss of energy

Solution Approach 1:

High temperature is applied locally only in the second zone where pyrolysis products need to be formed, while the first zone maintains lower temperature for drying. This localized high-temperature application minimizes energy consumption by heating only the specific region where thermal decomposition is required, rather than heating the entire reaction chamber to high temperature, thus reducing overall energy loss while still producing the necessary pyrolysis products.

Inventive Principle:
Principle #3Local quality

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 the production of valuable products like oil, gas, and char while reducing energy consumption and capital costs, making the process more economically and environmentally viable for commercial-scale production.

Implementation Method 1

exposing the organic material to a temperature profile within the chamber that dries and pyrolyses the organic material and releases water vapour and a volatile products gas phase

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

thermal decomposition of organic material in the absence of or with limited supply of an oxidising agent

Methodology Applied
Scientific EffectPyrolysis: Pyrolysis

Implementation Method 3

The water vapour phase and condensable components of the volatile products gas phase condense in cooler upstream sections of the chamber and form a liquid water product and a separate liquid oil product

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentUS9708540B2Processing organic materials
Publication Date: 2017.07.18 THE CRUCIBLE GROUP IP PTY LIMITED
  • US9708540B2 patent drawing
  • US9708540B2 patent drawing
  • US9708540B2 patent drawing

AI summary

A method and an apparatus for pyrolysing a solid organic feed material are disclosed. Solid organic material is moved through a reaction chamber and exposed to a temperature profile within the chamber that dries and pyrolyses the organic material and releases water vapour and a volatile products gas phase. The water vapour phase and the volatile products gas phase are moved counter-current to the solid organic material so that the water vapour phase and condensable components of the volatile products gas phase condense in cooler upstream sections of the chamber and form a liquid water product and a separate liquid oil product. The liquid water product is discharged via an outlet along the length of the chamber and a dried and pyrolysed solid product is discharged from a downstream outlet in the chamber.