FILTRATION APPLICATIONS IN CATALYTIC REFORMING
Catalytic reforming is a major With the fast growing demand in Common filtration problems process in the petroleum refinery aromatics and demand of high - octane in a catalytic reforming numbers, catalytic reforming is likely process include: and petrochemical industries. to remain one of the most important This process converts low octane unit processes in the petroleum and • Condensable hydrocarbons in both naphthas into higher octane petrochemical industry. recycled and net hydrogen can reduce reformate products for gasoline reliability of downstream equipment The most common type of catalytic Liquid and solid contaminants in fuel blending and aromatics rich in reforming unit is semi- regenerative. It gas lines may damage heater/furnace benzene, toluene, and xylene with has three reactors, each with a fixed burner nozzles hydrogen and liquefied petroleum bed of catalyst, and all of the catalyst is gas as a byproduct. regenerated in situ during routine catalyst • Lube oil contamination from regeneration shutdowns. compressor discharge line will decline reactor operations Some catalytic reforming units may have an extra spare or swing reactor allowing • Liquid and solid contaminants will lower each reactor to be individually isolated so compressor operation efficiency that any one reactor can be undergoing • Premature fouling and regeneration of regeneration while the other reactors Benefits of an optimized reforming catalyst filtration system include: are in operation. When that reactor is regenerated, it replaces another reactor • Lower maintenance costs which, in turn, is isolated so that it can • Longer burner service life then be regenerated. • Reduced catalyst contamination • Enhanced reactor operations • Improved operation and process efficiency Gas Off Gas Semi-Regenerative Catalytic Reforming Process Liquid cw Coalescer Reflux Drum Net Hydrogen 4 38° C Reflux 6 5 Hydrogen Recycle Gas
Pump
Gas Gas Liquid Recycled Gas Liquid Coalescer Compressor Coalescer
Stripper
Gas Gas Gas
Recycle Gas Fixed
Liquid Fired Liquid Fired Liquid Fired Bed Coalescer Heater Coalescer Heater Coalescer Heater Reactor
Gas Separator Vapor Reboiler
Fixed Fixed Steam or hot oil 1 Bed 2 Bed 3 Reactor Reactor cw Cooler Reformate Fuel Gas Fuel Gas Liquid
Preheated Naphtha and Hydrogen
Recycle Gas
Dehexanized Feed Naphtha This schematic should be viewed as a general example of where filtration systems Pump could be located within catalytic reforming processes. These processes will vary between companies and facilities. As such, each application should be reviewed and considered individually in order to choose the correct system technology.
Filter Solution Filter Purpose Filter Benefit
Micro-DEP™ and Micro-LOK™ Series Removal of liquid and solid contaminants Improved burner efficiency, longer service 01-03 Coalescer Elements and Vessel from fuel gas life, and reduced maintenance costs
Micro-DEP™ and Micro-LOK™ Series Removal of condensable Protection of compressor and 02 Coalescer Elements and Vessel hydrocarbons from net hydrogen downstream equipment
Micro-DEP™ and Micro-LOK™ Series Removal of condensable Compressor protection, reduced catalyst 03 Coalescer Elements and Vessel hydrocarbons from recycled hydrogen contamination, improved reliability
PMicro-DEP™ and Micro-LOK™ Series Removal of lube oil from compressor Lower maintenance costs and improved 04 Coalescer Elements and Vessel discharge gas reactor efficiency
Continuous Catalytic Reforming Process Spent Catalyst Fresh Catalyst 4 Net Hydrogen Recycled R1 Hydrogen Off Gases Gas Liquid Coalescer R2 Fired Fired Fired Heater Heater Heater Stacked Reactor CCR Regenerator Separator
R3 5 Stripper
Product Gas 1 2 3 Liquid Gas Gas Gas Coalescer Liquid Liquid Liquid Coalescer Coalescer Coalescer
Recycled Gas Compressor Fuel Gas 6 Gas Reformate Liquid Naphtha Coalescer
ADDRESS CONTACT 900 Industrial Parkway P: +1 254-559-7591 | +1 844 GO FILTR P.O. Box 1092 E: [email protected] Breckenridge, Texas 76424 USA W: www.jonellsystems.com