Silicon Adsorbent Chloride Removal Feedstock Purification
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Solution Overview
Problem
Existing methods fail to effectively remove or reduce chloride-containing compounds from feedstocks, leading to increased organic chloride formation and corrosion risks in processing equipment, and render unsuitable feedstocks unusable for fuel or chemical production.
Innovation Solution
A method involving contacting a feedstock with a silicon or mineral-based material, such as silica or diatomaceous earth, to adsorb and separate chloride compounds, thereby reducing inorganic and organic chloride content without converting inorganic chlorides to organic forms, and using a two-stage process that includes bleaching to further purify the feedstock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional filtering methods are used to remove impurities from feedstock, then filtration efficiency is improved, but chloride-containing compounds remain and cause corrosion risks
Solution Approach 1:
The patent introduces a silicon-based material as an intermediary substance that specifically binds to chloride-containing compounds. This mediator enables the removal of harmful chlorides without compromising the filtration of other impurities, thus resolving the contradiction between maintaining filtration efficiency and eliminating corrosion risks.
Solution Approach 2:
The invention employs porous silicon-based materials with specific surface properties that selectively adsorb chloride compounds. The porous structure provides high surface area for chloride binding while maintaining the filtration function, thereby achieving both efficient filtration and chloride removal simultaneously.
2Productivity
If feedstock with high chloride content is processed using conventional methods, then processing continues, but organic chloride compounds form and increase
Solution Approach 1:
The patent applies preliminary treatment with silicon-based material before main processing to remove inorganic chloride compounds from the feedstock. This preliminary action prevents the formation of organic chlorides during subsequent processing steps, allowing continuous processing of high-chloride feedstocks without generating harmful byproducts.
Solution Approach 2:
The invention converts the harmful effect of chloride presence into a beneficial selective adsorption process. The silicon-based material specifically targets and binds chloride compounds, transforming the problematic chloride content into a removable form that can be easily separated, thus enabling processing of feedstocks that would otherwise be unsuitable.
3Manufacturing precision
If acid-activated mineral-based materials are used to remove inorganic chloride, then inorganic chloride removal is improved, but organic chloride content increases
Solution Approach 1:
The patent changes the key parameter of the adsorbent material from acid-activated to silicon-based with specific surface properties. This parameter change fundamentally alters the interaction mechanism with chloride compounds, enabling selective removal of inorganic chlorides through silicon-chloride bonding without catalyzing the formation of organic chlorides, thus resolving the contradiction between removal efficiency and byproduct formation.
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 method significantly reduces chloride content, minimizing corrosion risks and enabling the use of previously unsuitable feedstocks for industrial processing, while maintaining low organic chloride levels and improving filtration efficiency.
Implementation Method 1
contacting said feedstock with a silicon or mineral based material
Data Source
AI summary
The present disclosure relates to a novel process for removing or reducing inorganic and organic chloride containing compounds from a feedstock.