Mobile Biochar Production Unit for Soil Carbon Sequestration

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Solution Overview

Problem

Current methods for reducing atmospheric CO2 levels, such as biochar-bioenergy systems and carbon capture and storage, face challenges like high costs and infrastructure requirements, and there is a need for immediate and efficient techniques to improve soil fertility while promoting carbon sequestration.

Innovation Solution

A mobile apparatus and method that processes wood into biochar using pyrolysis, distributing it back into the soil to enhance fertility and sequester carbon, utilizing a continuous process line with interconnected units for efficient operation and energy recycling, allowing for selective harvesting and regrowth without extensive infrastructure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If carbon capture and storage infrastructure is implemented, then atmospheric CO2 levels are reduced, but implementation time and infrastructure requirements increase significantly

Engineering Contradiction:
Improveatmospheric CO2 levelsVSAvoidimplementation time
Core Design Contradiction:
Object-generated harmful factorsVSLoss of time

Solution Approach 1:

The system uses the biomass resource itself to fuel the pyrolysis process, generating energy and syngas that power the biochar production equipment. This self-sufficient approach eliminates external infrastructure requirements and enables immediate deployment without waiting for external energy infrastructure development.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system processes biomass in small, distributed locations rather than requiring large centralized carbon capture facilities. By segmenting the carbon sequestration process into multiple small-scale biochar production units, the system can be implemented immediately across many locations simultaneously, dramatically reducing overall implementation time.

Inventive Principle:
Principle #1Segmentation

2Object-generated harmful factors

If centralized carbon dioxide sequestration is implemented, then atmospheric carbon is removed, but large centralized infrastructure is required

Engineering Contradiction:
Improveatmospheric carbonVSAvoidinfrastructure requirements
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The system divides carbon sequestration into numerous small-scale distributed biochar production units rather than one large centralized facility. Each unit independently processes local biomass and produces biochar that is applied to nearby soils, eliminating the need for complex centralized infrastructure for biomass collection, transport, and processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pyrolysis system performs multiple functions simultaneously: it converts biomass to biochar for soil application, generates syngas for energy production, and creates ash that can be returned to soil. This multi-functionality eliminates the need for separate infrastructure for energy generation and waste management that would be required in conventional centralized systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If biochar is produced and distributed to specific field locations, then soil fertility is improved, but precision targeting requires complex knowledge systems

Engineering Contradiction:
Improvesoil fertility improvementVSAvoidknowledge systems
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system produces biochar at or near the specific field locations where it will be applied, allowing tailoring of biochar production to local soil conditions and crop requirements. Each distributed unit can be operated independently to match the specific needs of nearby agricultural land, eliminating the need for complex centralized planning and distribution logistics.

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 efficiently improves soil fertility, promotes natural regrowth, and effectively sequesters carbon, reducing atmospheric CO2 levels while minimizing energy consumption and infrastructure needs, thus addressing the urgency of climate change mitigation.

Implementation Method 1

A mobile apparatus and method that processes wood into biochar using pyrolysis

Methodology Applied
Scientific EffectPyrolysis: Pyrolysis

Data Source

PatentEP3318119B1Method for improving soil fertility
Publication Date: 2020.03.11 OBRIST ENG
  • EP3318119B1 patent drawingFigure 1
  • EP3318119B1 patent drawingFigure 2
  • EP3318119B1 patent drawingFigure 3

AI summary

The invention relates to a method for reducing CO2 in the atmosphere comprising the following method steps: a) Harvesting wood in a forest by a harvesting unit to form an open area for growing plants, in particular trees; b) Shredding the harvested wood by a shredding unit; c) Coking the shredded wood by a coking unit to form biochar; d) Inserting the biochar by an insertion unit into the soil of the open area formed in step a; wherein at least steps a - d are performed continuously within a mobile vehicle, the mobile vehicle comprising at least the harvesting unit, the shredding unit, the coking unit and the insertion unit.