Jiangsu Haifa Machinery Manufacturing Co., Ltd.

A single 2.6 million tons/year Aromatics Complex typically encompasses processes such as reformate treatment, aromatics extraction, benzene/toluene separation, xylene fractionation, PX adsorptive separation, isomerization, and disproportionation. Honeywell UOP public case studies show that a 2.6 million/year-class aromatics unit can be with Sulfolane™, Parex™, Isomar™, Tatoray™, and other, imposing high requirements on pump continuous operation reliability, NPSH margin, and light hydrocarbon sealing. In terms of API 610 pump configurations, OH1 is suitable for utilities, process water, and ambient-temperature aromatics; OH2 centerline-supported pumps primarily handle Process Service for benzene, toluene, xylene, reformate, and high-temperature column bottoms circulation; OH3 and OH4 are suitable for piping layouts within the plant area; OH6 high-speed pumps can be for low-flow, high-head injection and light hydrocarbon boosting. BB1 is suitable for large-flow cooling and low-head transfer; BB2 radially split pumps offer good thermal stability and can be used for reformate, aromatics column bottoms, and high-temperature continuous duty; BB3 and BB4 multistage pumps are suitable for medium-to-high pressure boosting; BB5 double-casing multistage pumps (Barrel Pumps) are used for high-pressure feed, product export, and low-density media, and are widely applied in high-temperature refining and high-pressure service in international API 610 engineering. VS1 is suitable for large cooling water and underground sumps; VS4 and VS5 are used for wastewater, condensate, and submerged discharge; VS6 and VS7 Vertical Can Pumps are suitable for low-NPSHa, easily vaporized aromatics, light hydrocarbons, and underground tank transfer. Jiangsu Haifa Machinery Manufacturing Co., Ltd. www.jslgpump.com can provide OH, BB, and VS series API 610 chemical process pumps, and performs engineering selection for the 2.6 million tons/year aromatics complex based on Flow, Head, Vapor Pressure, NPS/NPSHr, API 682 Seal Plan, and Material Selection. API 610/ISO 13709 itself covers three major pump type systems: Overhung, Between Bearings, and Vertically Suspended. References: [1] API Std 610, Centrifugal Pumps for, Petrochemical and Natural Gas Industries. [] ISO 13709, Centrifugal Pumps for Petroleum Petrochemical and Natural Gas. [3] Honeywell UOP, Aromatics / Parex / Isomar / Tatoray Technologies. [4] Axens, Aromatics Extraction & Xylenes Production.

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