Multi-Additive Delivery With Detachable Sources for No-Shutdown Switching

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Solution Overview

Problem

Existing additive feed systems in commercial production facilities are inflexible, requiring shutdowns for additive replenishment, difficult to switch between additives, and challenging to customize during operation, leading to inefficiencies and high costs.

Innovation Solution

A multi-additive delivery system with detachable additive sources and automated process control, enabling seamless switching and customization of additives without shutdowns, using detachable connectors and computerized flow control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single additive is fed through permanently hard-piped systems with run tanks and metering pumps, then the additive can be delivered to the reaction site, but production must be shut down when the additive is exhausted and it is difficult to switch to different additives

Engineering Contradiction:
Improveability to switch between additivesVSAvoidproduction shutdown time
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The system divides the additive delivery into multiple independent feedlines, each capable of delivering different additives. This segmentation allows one feedline to be switched or maintained while others continue operating, eliminating the need for complete production shutdown when switching additives.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each feedline is designed as a universal module capable of delivering any type of additive through standardized components (pumps, meters, injectors). This multi-functionality allows rapid switching between different additives without requiring dedicated infrastructure for each additive type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If permanently hard-piped additive feed systems are used, then additive delivery is established, but the system is difficult to customize or experiment with different additive combinations and concentrations

Engineering Contradiction:
Improvecustomization of additive combinationsVSAvoidsystem reconfiguration difficulty
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system incorporates dynamic control capabilities through automated metering pumps and programmable controllers that can adjust flow rates, concentrations, and timing of multiple additives in real-time. This allows flexible customization of additive combinations without physical reconfiguration of the hard-piped infrastructure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system includes monitoring and control mechanisms that provide feedback on additive delivery parameters, enabling precise control and adjustment of additive combinations and concentrations. This feedback loop allows for experimentation and optimization of formulations while maintaining stable operation.

Inventive Principle:
Principle #23Feedback

3Productivity

If run tanks are used for additive storage and metering, then additive can be fed to the reaction site, but large proportions of tanks may be wasted when only a small amount is needed for a production run

Engineering Contradiction:
Improveadditive utilization efficiencyVSAvoidadditive waste
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The system uses precision metering pumps and flow controllers to deliver only the exact amount of additive needed for each production run, rather than transferring entire tank contents. This partial action approach eliminates the need to waste remaining additive in tanks when production requirements are met with smaller quantities.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system replaces manual tank transfer operations with automated metering and dosing mechanisms controlled by programmable logic. This substitution enables precise control of additive quantities, eliminating the inefficiencies of manual tank-based delivery where over-transfer and waste were common.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2846904B1Multi-additive delivery system
Publication Date: 2025.09.10 DOW GLOBAL TECHNOLOGIES LLC
  • EP2846904B1 patent drawingFigure 1

AI summary

An apparatus and method for delivery of additives(s), e.g., catalyst, co-catalyst, scavengers, and/or other reaction- or product-modifying agents, to a reaction or mixing site, such as a reaction vessel, offers the capability for multi-additive delivery and customization of additive selection, flow and flow rate, and if desired, mixing thereof, without production train shutdowns. The invention includes at least two additive sources that are detachably connected, with conduit, to the reaction or mixing site, and a process control means, preferably automated, that is capable of initiating, terminating, and determining the rate of flow from the additive sources.