Modular Gas Scrubbing Containers for H2S Removal
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Solution Overview
Problem
Current systems for removing hydrogen sulfide (H2S) from gas streams are costly, labor-intensive, require large and specialized equipment, and involve significant time and coordination for media change-outs, making them inefficient and economically challenging.
Innovation Solution
A system utilizing a series of smaller, modular containers with gas permeable bags containing scrubbing medium, allowing for sequential gas processing and in-situ cleaning of containers without halting the operation, reducing manual labor and equipment needs, and extending media utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If large tanks with 16,000 pounds of scrubbing media are used, then gas cleaning capacity is improved, but manual labor and time for media change-out increase significantly
Solution Approach 1:
The system divides the large 16,000-pound media capacity into multiple smaller containers, each holding approximately 2,000 pounds of scrubbing media in removable bags. This segmentation allows individual bags to be quickly removed and replaced without the need to service entire large tanks, reducing media change-out time while maintaining total gas cleaning capacity through parallel or sequential operation of multiple containers.
2Ease of repair
If traditional tank systems with manways are used, then media change-out is possible, but specialized equipment like cranes and vacuum trucks are required
Solution Approach 1:
The scrubbing media is extracted from fixed tank installations and placed in removable bags that can be easily taken out of simplified containers. This eliminates the need for complex manway openings, cranes for lifting heavy media, and vacuum trucks for removal, as the flexible bags can be manually handled and replaced with minimal equipment.
3Loss of substance
If batch processing in single vessels is used, then media utilization is maximized, but continuous operation requires Lead-Lag configuration increasing system complexity
Solution Approach 1:
The system uses multiple independent containers with removable media bags, allowing one container to be serviced while others continue operating. This segmented approach enables continuous gas treatment without requiring complex Lead-Lag configurations, as each container operates independently and can be taken offline for media replacement without affecting the entire system.
4Ease of manufacture
If high pressure water hoses are used for media removal, then spent material is cut out effectively, but the operation becomes messy and requires shutdown
Solution Approach 1:
The spent scrubbing media is extracted as complete flexible bags rather than being cut out from fixed installations using high-pressure water hoses. The bags can be removed intact through simple container openings, eliminating the messy cutting operation and allowing media replacement without shutting down the gas treatment system, as containers can be serviced independently.
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 significantly reduces manual labor and time required for media change-outs, eliminates the need for expensive specialized equipment, and increases the useful life of the media, while maintaining efficient gas cleaning capabilities.
Implementation Method 1
When the water-saturated gas containing H2S comes in contact with the media, the H2S is converted to Iron Pyrite (FeS2)
Implementation Method 2
A gas permeable receptacle or bag (60) adapted to be placed within the interior (20) of the container (10)
Data Source
AI summary
A system and method of cleaning and scrubbing contaminants, including sulfides, from an unclean or raw gas includes one or more containers, each of which include a gas permeable receptacle or bag containing an appropriate gas scrubbing medium for removing the contaminants from the gas stream. A gas extraction device is adapted via inserted into the gas scrubbing medium with the gas permeable receptacle wherein the gas extraction device is connected to at least one gas outlet port in the container. A series of containers can be used wherein the containers are connected sequentially to remove the gas. A system for bypassing one of the plurality of containers in order to clean out the container while the gas cleaning mechanism is still in operation is also described.