Phytase Treatment for Phytate Scale in Ethanol Processing
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Solution Overview
Problem
Ethanol processing equipment experiences tenacious insoluble organometallic scale deposits due to phytic acid precipitation with soluble metals, impeding heat transfer and mechanical operation, necessitating effective methods to reduce or prevent such deposition.
Innovation Solution
The method involves adding a phytase enzyme to ethanol-processing fluids post-fermentation to convert phytic acid salts into soluble inorganic phosphates, thereby improving metal solubility and facilitating the removal of insoluble deposits from processing equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phytic acid is present in ethanol-processing fluids, then metal solubility is maintained, but insoluble organometallic salt deposits form on processing equipment
Solution Approach 1:
The patent changes the chemical form of phosphate from organic phytate to inorganic orthophosphate through enzymatic hydrolysis, fundamentally altering solubility parameters. This transformation converts insoluble phytate-metal complexes into soluble orthophosphate-metal complexes, preventing scale deposition while maintaining metal solubility in the processing fluid
Solution Approach 2:
The patent introduces phytase enzyme as an intermediary substance that catalyzes the conversion of phytate to orthophosphate. This enzyme mediator enables the transformation without directly interacting with the metal ions, allowing the system to maintain metal solubility while eliminating the scale-forming phytate component
2Quantity of substance
If phytic acid precipitates with soluble metals, then metal solubility decreases, but this creates insoluble deposits that impair heat transfer and flow
Solution Approach 1:
The patent transforms the chemical parameter of phosphate speciation from organic to inorganic form, which fundamentally changes the solubility product and precipitation behavior. Orthophosphate maintains higher solubility with metals compared to phytate, preventing the formation of insoluble deposits that would otherwise impair heat transfer and fluid flow
Solution Approach 2:
The patent converts the harmful scale-forming property of phytate into a beneficial soluble state through enzymatic conversion. The same metal-phosphate interactions that previously caused harmful deposits are transformed into beneficial soluble complexes, turning the scale formation problem into a solution that maintains both metal solubility and heat transfer efficiency
3Ease of operation
If scale deposits form on processing equipment, then equipment fouling increases, but removal of deposits requires production interruptions
Solution Approach 1:
The patent applies preliminary anti-action by preventing scale deposit formation in the first place through enzymatic conversion of phytate to orthophosphate. By maintaining metals in soluble form throughout the processing operation, the system eliminates the need for subsequent deposit removal activities, avoiding production interruptions and maintaining continuous operation
Solution Approach 2:
The patent implements self-service by using the phytase enzyme to continuously maintain metal solubility and prevent scale formation during normal operation. The system self-regulates to prevent fouling without requiring external intervention or shutdown for maintenance, making the equipment care itself through continuous enzymatic action
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 reduces or prevents the formation of insoluble deposits, ensuring uninterrupted ethanol processing by maintaining equipment efficiency and preventing production interruptions.
Implementation Method 1
converting the insoluble material to a soluble residue by action of the agent
Implementation Method 2
adding an enzyme with phytase activity to the ethanol-processing fluids after fermentation; converting the phytate to orthophosphate by action of the enzyme
Implementation Method 3
converting phytic acid salts or phytates to inorganic phosphates
Data Source
AI summary
The present inventors have surprisingly discovered that phytic acid tenaciously precipitates with soluble metals in food or fuel ethanol-processing fluid, producing insoluble organometallic salt deposit or scale on the processing equipment that must be removed in order to facilitate further ethanol processing. The present invention relates to converting phytic acid salts or phytates to inorganic phosphates to improve metal solubility and reduce deposition within processing equipment.