Adsorbent Particle Feeder for Tar Removal in Carbon Monoxide Gas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In metal smelting processes, particularly ferrochromium smelting, the tar component in carbon monoxide gas is not effectively removed by existing methods, leading to equipment blockages and operational issues, preventing the reuse of carbon monoxide gas in processes and power generation due to its sticky nature.
Innovation Solution
A method and arrangement involving a particle feeder that introduces finely divided adsorbent particles, such as coke dust, into the carbon monoxide gas to adsorb tar components before passing the gas through a particulate filter, ensuring efficient removal of both tar and solid particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carbon monoxide gas is cleaned of solid particles using a venturi scrubber and particulate filter, then solid particles are removed from the gas, but the tar component condenses on equipment surfaces causing blockages and maintenance issues
Solution Approach 1:
The patent applies preliminary action by introducing adsorbent particles into the carbon monoxide gas stream before the gas reaches equipment surfaces where tar would condense. The adsorbent particles adsorb the tar component in the gas phase, preventing it from condensing on downstream equipment such as blowers, heat exchangers, and burners. This proactive removal of tar before condensation occurs eliminates the harmful blockages and maintenance issues that would otherwise result from tar deposition.
2Productivity
If carbon monoxide gas containing tar is reused in smelting processes or power generation, then gas utilization efficiency increases, but tar causes blockages in burners, blowers, and flow channels
Solution Approach 1:
The patent uses adsorbent particles as an intermediary substance to remove tar from the carbon monoxide gas. These particles are introduced into the gas stream, where they adsorb the tar component through their large surface area and adsorption capacity. The tar-laden adsorbent particles are then removed in the particulate filter, allowing the cleaned gas to be reused in smelting processes or power generation without causing blockages in burners, blowers, and flow channels.
3Quantity of substance
If conventional solid particle removal methods are used, then solid particles are filtered from the gas, but the tar component remains in gaseous state and condenses on equipment surfaces
Solution Approach 1:
The patent applies parameter changes by transforming the tar component from a gaseous state that condenses on surfaces to an adsorbed state on particulate matter. By introducing adsorbent particles with appropriate surface properties and large surface area, the tar component's physical state and location are changed - it remains in the gas stream but is bound to the adsorbent particles rather than condensing on equipment surfaces. This parameter change allows conventional particulate filters to remove both the adsorbent particles and the adsorbed tar, solving the reliability issue without affecting solid particle removal efficiency.
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 effectively removes tar components from carbon monoxide gas, preventing equipment blockages and enabling the safe reuse of the gas in smelting processes and power generation by ensuring the gas is clean and free from tar residues.
Implementation Method 1
there are fed finely divided adsorbent particles for adsorbing the tar component on the surface of the adsorbent particles
Data Source
Figure 1~5
AI summary
A method and arrangement for removing solid particles and tar component from carbon monoxide gas. In the method, carbon monoxide gas is conducted from a ferroalloy smelting furnace to a gas scrubber, the carbon monoxide gas is scrubbed in the gas scrubber by a liquid medium for removing part of the solid particles, the carbon monoxide gas is conducted from the gas scrubber to a blower, the flow rate of the carbon monoxide gas is increased by the blower, and the carbon monoxide gas is conducted to a particulate filter and the remaining solid particles are essentially filtered in the particulate filter from the carbon monoxide gas. Prior to conducting the carbon monoxide gas to the particulate filter, it is conducted to a particle feeder (4), where finely divided adsorbent particles (A) are fed in the carbon monoxide gas for adhering the tar component on the surface of the adsorbent particles, and the carbon monoxide gas flow containing adsorbent particles is conducted to the particulate filter, in which case the tar component adhered on the adsorbent particles is discharged in the particulate filter.