Biomass Gasifier Separator System for Tar Reformer Protection
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Solution Overview
Problem
Catalyst deactivation and performance issues in tar reformer units due to exposure to fine dust, fly ash, and chemical poisons in biomass gasification systems, leading to carbon coke formation and increased pressure drop, especially in dusty environments.
Innovation Solution
A separator system comprising two cyclones and a special piping element with a burner that heats and burns off particulate matter, providing a step-by-step cleaning process to reduce catalyst exposure to dust and ash, allowing for the removal of agglomerated particles and improving gas distribution to tar reformer units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single cyclone separator is used to remove particulate matter, then the device complexity is low, but the purification precision is insufficient to adequately protect the catalyst from fine dust and fly ash
Solution Approach 1:
The single cyclone separator is divided into two sequential cyclone separators. The first cyclone removes coarse particulate matter, and the second cyclone removes fine dust and fly ash particles. This segmentation allows each cyclone to be optimized for its specific particle size range, achieving higher overall purification precision while keeping each individual cyclone relatively simple in design.
2Reliability
If the gas is not sufficiently cleaned before entering the tar reformer, then the productivity is maintained, but the catalyst deactivates due to carbon coke formation and dust buildup
Solution Approach 1:
The gas is cleaned of particulate matter before entering the tar reformer unit. Two cyclone separators are used in sequence to remove dust and fly ash, and a special piping element with burner burns off remaining particulate matter. This preliminary cleaning action protects the catalyst from deactivation by carbon coke formation and dust buildup, ensuring prolonged catalyst lifetime while maintaining continuous operation and productivity.
3Manufacturing precision
If a burner is added to burn off particulate matter, then the purification precision is improved, but the energy consumption increases
Solution Approach 1:
The special piping element with burner converts the harmful remaining particulate matter (fine dust and fly ash) into beneficial effects by burning it off. This combustion process eliminates the finest particles that would otherwise reach the catalyst, achieving high purification precision. The energy consumed by the burner is offset by the protection it provides to the catalyst, preventing more significant energy losses from catalyst deactivation and regeneration cycles.
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 effectively reduces the content of fine dust and fly ash particles, preventing catalyst deactivation and maintaining performance by removing particulate matter and ensuring even gas distribution, thus prolonging catalyst life and preventing pressure buildup.
Implementation Method 1
a first cyclone and a second cyclone, where said first cyclone comprises an inlet for receiving a gas from a biomass gasification unit, said first cyclone being arranged for removing particulate matter from the gas from the biomass gasification unit
Implementation Method 2
piping arranged to lead said first cleaner gas from said first cyclone to said second cyclone, where said second cyclone is arranged to remove particulate matter from said first cleaner gas
Implementation Method 3
a pipe arranged to lead said second cleaner gas to a special piping element, said special piping element comprising a burner for heating the second cleaner gas and burning off particulate matter in the second cleaner gas
Data Source
AI summary
A separator system for treating a gas from a biomass gasification system, including: first and second cyclones, where the first cyclone includes an inlet for receiving a gas from a biomass gasification unit, the first cyclone being arranged for removing particulate matter from the gas from the biomass gasification unit in order to provide a first cleaner gas, piping arranged to lead the first cleaner gas to the second cyclone, where the second cyclone is arranged to remove particulate matter from the first cleaner gas in order to provide a second cleaner gas, a pipe arranged to lead the second cleaner gas to a special piping element, the latter including a burner, thereby providing a third cleaned gas, and a gas distribution unit arranged to lead the third cleaned gas to one or more tar reformer units. Also, a method of treating a gas from a biomass gasification system.