With continuing emphasis on maximizing capacity of existing equipment and improving product quality specifications, strict mechanical design and specification of mass transfer equipment for hydrocarbon processing has become an area of critical concern. This concern includes both new plant construction and existing plant modification. Basic mass-transfer operations include absorption, fractionation and stripping. Together, these processes are the most common unit operations in hydrocarbon processing. Other allied application areas include gas treating and separation and chemical production.
Recommendations for mechanical design criteria and specification of vessel internals for these services are made. Considerations covered include equipment selection criteria, mechanical strength, upset protection, materials selection, leakage, start-up and shut-down considerations, and off-design operating condition requirements. Special emphasis will be placed on specification of modern, high-efficiency, and high-capacity equipment often used in modification of existing units. Practical examples illustrate the key points and concepts developed. These examples show the need for careful and skilled preparation of engineering specifications, especially those going out for competitive bidding. If your own organization cannot specify this type of equipment correctly, arranging access to an experienced engineer that can is critical to complete procurement success.
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