Biomass-Based Liquid Fuel Manufacturing with Dynamic Hydrogen Control

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Solution Overview

Problem

Existing liquid fuel manufacturing systems face challenges in maintaining minimal fuel manufacturing costs and quality control under fluctuating hydrogen prices, particularly when hydrogen prices rise sharply.

Innovation Solution

A system and method that includes a control device to adjust hydrogen supply and H2/CO ratio dynamically, minimizing fuel costs by reducing hydrogen use without stopping supply, using a biomass-based gasification process integrated with renewable energy electrolysis for hydrogen production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If hydrogen supply is increased to maintain quality control, then fuel manufacturing quality is improved, but fuel manufacturing cost increases

Engineering Contradiction:
Improvefuel manufacturing qualityVSAvoidfuel manufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The system dynamically adjusts hydrogen supply amount and H2/CO ratio based on real-time fuel manufacturing cost calculations. The control device modifies operational parameters continuously to maintain optimal balance between quality and cost, rather than using fixed settings. This allows the system to adapt to varying hydrogen prices and maintain minimal costs while ensuring quality control requirements are met.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes operational parameters (hydrogen supply amount, H2/CO ratio) based on calculated fuel manufacturing costs. By adjusting these parameters dynamically and comparing current costs with historical data, the system optimizes the balance between maintaining quality and minimizing manufacturing costs, resolving the contradiction between quality and cost.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If hydrogen supply is reduced to minimize cost, then fuel manufacturing cost is reduced, but quality control deteriorates

Engineering Contradiction:
Improvefuel manufacturing costVSAvoidquality control
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The control device continuously calculates fuel manufacturing costs and uses this feedback to adjust hydrogen supply and H2/CO ratio. By monitoring cost trends and comparing them with quality control requirements, the system maintains optimal operational parameters that balance cost minimization with quality maintenance, preventing quality deterioration while reducing costs.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts hydrogen supply based on real-time cost calculations and quality control requirements. This dynamic adjustment ensures that hydrogen supply is optimized to maintain quality while minimizing costs, rather than using fixed high or low supply levels that would compromise either quality or cost efficiency.

Inventive Principle:
Principle #15Dynamics

3Ease of manufacture

If hydrogen supply is stopped to minimize cost when prices rise, then fuel manufacturing cost is minimized, but production continuity is lost

Engineering Contradiction:
Improvefuel manufacturing costVSAvoidproduction continuity
Core Design Contradiction:
Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The control device calculates fuel manufacturing costs in advance and compares them with historical data before making supply adjustments. This preliminary cost calculation and comparison allows the system to determine the optimal hydrogen supply level that maintains production continuity while minimizing costs, rather than abruptly stopping supply when prices rise.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts hydrogen supply levels based on real-time cost calculations rather than stopping production entirely. This dynamic approach maintains production continuity by optimizing supply levels to match current cost conditions, ensuring the facility operates efficiently whether hydrogen prices are high or low.

Inventive Principle:
Principle #15Dynamics

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

Ensures consistent minimal fuel manufacturing costs by adjusting hydrogen and H2/CO ratio based on cost comparisons, maintaining efficiency and quality control even when hydrogen prices spike.

Implementation Method 1

a gasification furnace producing synthesis gas from a biomass raw material

Methodology Applied
Scientific EffectGasification:

Implementation Method 2

an electrolysis apparatus producing hydrogen from water by means of electricity generated using renewable energy

Methodology Applied
Scientific EffectElectrolysis: Electrolysis

Data Source

PatentUS20250304870A1Liquid fuel manufacturing system and liquid fuel manufacturing method
Publication Date: 2025.10.02 HONDA MOTOR CO LTD
  • US20250304870A1 patent drawing
  • US20250304870A1 patent drawing
  • US20250304870A1 patent drawing

AI summary

A liquid fuel manufacturing system and a liquid fuel manufacturing method which can be operated under conditions that fuel manufacturing costs are minimized at all times are provided. A liquid fuel manufacturing system 1 includes a gasification furnace producing synthesis gas from a biomass raw material, an electrolysis apparatus producing hydrogen from water by means of electricity generated using renewable energy, a liquid fuel manufacturing apparatus manufacturing liquid fuel with synthesis gas generated by the gasification furnace and hydrogen produced by the electrolysis apparatus as raw materials, and a control device controlling the gasification furnace and the electrolysis apparatus. The control device has a cost calculation means for calculating fuel manufacturing costs, a comparison means for comparing current fuel manufacturing costs with the fuel manufacturing costs when there is no supply of hydrogen, a hydrogen supply amount adjustment means for adjusting the amount of supplied hydrogen on the basis of comparison results of the comparison means, an H2/CO ratio calculation means for calculating an H2/CO ratio, and an H2/CO ratio adjustment means for adjusting the H2/CO ratio.