Mobile Biomass Gasifier With Continuous Syngas and Biochar Flow

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Solution Overview

Problem

Conventional biomass gasifiers face challenges with maintaining stable thermochemical conversion conditions due to the pacing of biomass feeding and byproduct discharge, leading to inefficiencies and increased maintenance, particularly when handling hot byproducts like syngas and biochar, which can cause downtime and safety risks.

Innovation Solution

A compact thermochemical energy conversion unit with a controlled biomass feeding system and integrated biochar and syngas processing, utilizing a biomass feeding assembly, heat expansion assembly, gas scrubber, and biochar extraction assembly, along with a controller for efficient operation and continuous processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If biomass feeding and byproduct discharge are paced in batches to maintain stable thermochemical conversion conditions, then reactor stability is improved, but downtime increases and productivity decreases

Engineering Contradiction:

Improvereactor stabilityVSAvoidproductivity

Core Design Contradiction:

Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent implements continuous biomass feeding and byproduct discharge operations, eliminating batch processing interruptions. The gasifier reactor operates continuously with steady feedstock input and continuous removal of syngas and biochar, maintaining stable thermochemical conversion conditions without downtime while maximizing productivity

Inventive Principle:

Principle #20Continuity of useful action

2Reliability

If gasifier size is increased to improve batch size and component reliability, then reliability is improved, but cost and footprint increase

Engineering Contradiction:

Improvecomponent reliabilityVSAvoidfootprint

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent optimizes the gasifier reactor to operating parameters within 10-20% of stoichiometric air-to-fuel ratio, maintaining temperatures of 800-1000°C and pressures of 1-5 atm. These parameter optimizations enable reliable continuous operation at compact scales, achieving high component reliability without increasing footprint or cost

Inventive Principle:

Principle #35Parameter changes

3Productivity

If continuous processing is implemented to reduce downtime, then productivity is improved, but maintaining stable conversion conditions becomes more difficult

Engineering Contradiction:

ImproveproductivityVSAvoidconversion condition stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent incorporates feedback control systems with sensors monitoring temperature, pressure, and syngas composition in real-time. The controller adjusts biomass feed rate and air injection dynamically to maintain stable conversion conditions during continuous operation, ensuring consistent syngas quality and reactor performance without downtime

Inventive Principle:

Principle #23Feedback

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 system enables continuous and efficient conversion of biomass into syngas and biochar, reducing downtime and safety risks while maintaining reactor stability, facilitating reliable power generation using an internal combustion engine.

Implementation Method 1

a heat expansion assembly including a reactor configured to receive a biomass and convert the biomass into a burnable gas and a biochar

Methodology Applied

Scientific EffectThermochemical conversion:

Implementation Method 2

a gas scrubber assembly operatively connected to the heat expansion assembly and configured to receive the burnable gas therefrom and to remove the undesirable materials from the burnable gas

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS20250382523A1Mobile biomass thermochemical energy conversion unit and related methods

Publication Date: 2025.12.18 LOCOAL CHARCOAL CO

AI summary

A thermochemical energy conversion unit includes a heat expansion assembly including a reactor configured to receive a biomass and convert the biomass into a burnable gas having undesirable materials therein and a biochar. The heat expansion assembly also includes a heat expansion discharge pipe configured to discharge the burnable gas from the heat expansion assembly. The thermochemical energy conversion unit also includes a gas scrubber assembly operatively connected to the heat expansion assembly and configured to receive the burnable gas therefrom and to remove the undesirable materials from the burnable gas. The gas scrubber assembly includes a scrubber discharge pipe configured to discharge the burnable gas from the gas scrubber assembly. The heat expansion assembly and the gas scrubber assembly are configured to be continuously fluidly connected from the heat expansion discharge pipe to the scrubber discharge pipe for generating a continuous flow of the burnable gas therealong.