Combined Compression Train Layout for Ammonia Plant Footprint Reduction
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Solution Overview
Problem
Ammonia production plants require multiple complex and costly compression trains, increasing the complexity and expense of the production process.
Innovation Solution
Combining at least two compression sections into a single combined compression train driven by a single driver, with at least one integrally geared compressor, to reduce the number of drivers and simplify the plant layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple separate compression trains are used for feed gas, process air, syngas, and refrigerant, then each gas can be compressed independently with appropriate control, but the plant complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple separate compression trains (feed gas compression, process air compression, syngas compression, and refrigerant compression) into a single integrated compression train. This merging reduces the overall number of compression units and drivers while maintaining the ability to independently control compression for each gas stream through separate compression sections within the integrated system.
Solution Approach 2:
The single driver in the integrated compression train serves multiple functions by driving all compression sections simultaneously. This multi-functional approach allows one driver to replace what would traditionally require four separate drivers, reducing mechanical complexity while maintaining independent control capabilities for each compression section through integrated design.
2Ease of manufacture
If four separate drivers are used to drive each compression train, then each compression section can be optimized independently, but the plant cost and mechanical complexity increase
Solution Approach 1:
The patent merges four separate drivers into a single driver that powers all compression sections. This integration reduces the number of mechanical components and simplifies the plant layout while maintaining independent optimization capabilities for each compression section through the integrated design architecture.
Solution Approach 2:
The single driver performs multiple functions by simultaneously driving all compression sections. This multi-functional driver design reduces mechanical complexity and cost while allowing independent optimization of each compression section through the integrated system architecture.
3Productivity
If multiple separate compression trains are installed, then adequate compression capacity is ensured for each gas stream, but the plant footprint and space requirements increase
Solution Approach 1:
The patent combines multiple separate compression trains into a single integrated compression train, significantly reducing the plant footprint. By merging the physical infrastructure of four separate compression units into one integrated structure, the space requirements are reduced while maintaining adequate compression capacity for all gas streams through coordinated operation of compression sections.
Solution Approach 2:
The integrated compression train employs a nested arrangement where multiple compression sections are housed within a single mechanical structure. This nesting approach allows multiple compression functions to coexist in a compact configuration, reducing the overall plant footprint while maintaining the compression capacity needed for feed gas, process air, syngas, and refrigerant.
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 reduces the overall footprint and complexity of the ammonia production plant, leading to cost savings and improved efficiency by minimizing the number of drivers and compression trains.
Implementation Method 1
at least one of the compression sections of the combined compression train comprises an integrally geared compressor
Data Source
Figure 1
Figure 2~4
Figure 5~8
AI summary
The ammonia production plant comprises a feed gas compression section 8, a process air compression section 22, a syngas compression section 34 and a refrigerant compression section 46. At least two of these compression sections are combined together forming a combined compression train driven by a single driver.