US20100065504A1 - Novel filtration method for refining and chemical industries - Google Patents

Novel filtration method for refining and chemical industries Download PDF

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Publication number
US20100065504A1
US20100065504A1 US12/589,314 US58931409A US2010065504A1 US 20100065504 A1 US20100065504 A1 US 20100065504A1 US 58931409 A US58931409 A US 58931409A US 2010065504 A1 US2010065504 A1 US 2010065504A1
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US
United States
Prior art keywords
filtration apparatus
compartment
stainless steel
housing
process stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US12/589,314
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English (en)
Inventor
Ping-Wen Yen
Yuh-Sheve Ho
Hung-Tzu Chiu
Chung-Jong Hwu
June-Cheng Chang
Tzong-Bin Lin
Tsoung Y. Yan
Cheng-Tsung Hong
Hung-Chung Shen
Jeng-Cheng Lee
Fu-Ming Lee
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CPC Corp Taiwan
Original Assignee
CPC Corp Taiwan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/112,623 external-priority patent/US20090272702A1/en
Application filed by CPC Corp Taiwan filed Critical CPC Corp Taiwan
Priority to US12/589,314 priority Critical patent/US20100065504A1/en
Assigned to CPC CORPORATION, TAIWAN reassignment CPC CORPORATION, TAIWAN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHANG, JUNE-CHENG, CHIU, HUNG-TZU, HO, YUH-SHEVE, HONG, CHENG-TSUNG, HWU, CHUNG-JONG, LEE, FU-MING, LEE, JENG-CHENG, LIN, TZONG-BIN, SHEN, HUNG-CHUNG, YAN, TSOUNG Y., YEN, PING-WEN
Publication of US20100065504A1 publication Critical patent/US20100065504A1/en
Priority to CN201080042372.0A priority patent/CN102597175B/zh
Priority to EP10773187A priority patent/EP2491098A1/en
Priority to MYPI2012001778A priority patent/MY158521A/en
Priority to PCT/US2010/052370 priority patent/WO2011049788A1/en
Priority to JP2012535239A priority patent/JP5521050B2/ja
Priority to KR1020127012838A priority patent/KR101481247B1/ko
Priority to TW099134840A priority patent/TWI439314B/zh
Priority to US13/470,340 priority patent/US9080112B2/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/28—Recovery of used solvent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/06—Filters making use of electricity or magnetism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
    • C10G31/09—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by filtration
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
    • C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation whereby the particles to be separated are in solid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/28—Parts being easily removable for cleaning purposes

Definitions

  • Process streams in refineries are often contaminated with components that are detrimental to down-stream process units and/or are corrosive to the process equipment, or they are contaminated with solid matter, such as iron rust, which tends to interfere with process lines, valves, and pumps.
  • the contaminants must be removed before the streams enter certain parts of the process or process units in order to maintain the process or unit performance.
  • a filtration screen, filter housing or cartridge containing adsorbents or filtration media is usually placed in front of the process unit to remove the bulk of the undesirable matters.
  • a RONNING-PETTER multiplex filter is used to remove solid matters from atmospheric distillation residual oil before it is fed to a hydrotreater at temperatures around 200° C.
  • Tri-cluster elements are installed in the filter to increase the filtration area.
  • a drawback of these filtration devices is that they can be overwhelmed by large quantities of solid matters and iron rust from corrosion in a short time. As a result, processes streams frequently bypass such filtration devices as contaminant build-up cause operational problems, such as increased pressures and/or reduced flow rates. In addition, rejuvenation of conventional filtration devices requires their disassembly replacement of the filter element, which is a costly, time-consuming, and environmentally hazardous task.
  • Process streams in chemical plants are generally cleaner than those of refineries in terms of solid matters, but chemical streams usually contain polar components that polymerize to form solid sludge, or decompose to form more active species that cause corrosion or related problems.
  • Activated carbon is frequently used as the adsorbent to remove the active species from the process stream.
  • U.S. Pat. No. 4,861,900 to Johnson describes the use of activated carbon to remove small amounts of compounds that are catalyst poisons in the catalytic hydrogenation of sulfolenes to sulfolanes.
  • U.S. Pat. No. 3,470,087 to Broughton describes a technique for removing polar solvent from a hydrocarbon product stream through an adsorption cycle with activated carbon and thereafter, recovering the adsorbed solvent through a desorption cycle. It has been demonstrated that adsorption-desorption arrangements with activated carbon is impractical because these units become quickly saturated with solid sludge or fine rust particles that strongly adheres to adsorbent thereby making the units difficult to clean. Other adsorbents, such alumina, silica gel and zeolitic materials have also been employed to remove polar matters from process streams. For example, U.S. Pat. No.
  • 3,953,324 to Deal describes a method of adsorbing polar solvent with silica gel from a product stream at low temperatures and then flashing a feed mixture at higher temperatures in order to recover the adsorbed solvent from silica gel. This method encounters that same problems attendant with adsorption-desorption methods using activated carbon.
  • This invention is directed novel filters that employ magnets for removing iron rust particulates and polymeric sludge, which are paramagnetic in nature, from refinery and chemical process streams.
  • the performance of these filters is attributable to the presence of the magnetic fields that are induced by the magnets.
  • the invention is based in part on the recognition that carbon steel, a common material in plant construction, is readily corroded by acidic components prevalent in process streams. The corrosion causes the formation of ferrous ions, which in turn react with sulfur, oxygen and water to form paramagnetic FeS, FeO, Fe(OH) 2 , Fe(CN) 6 , etc. that manifest as fine particles or visible flakes.
  • These paramagnetic materials will attract other degradation sludge, making the whole mass of contaminants paramagnetic. Consequently, the entire mass of the contaminants can be readily removed from the process stream with the magnet filter device of the present invention.
  • the invention is directed to a filtration apparatus for continuous online removal of contaminants from a process stream that comprises: (i) a pressure vessel that has a compartment, (ii) at least one magnet that is positioned within the compartment; and means for channeling the flow of the process stream containing contaminants pass the at least one magnet.
  • Each magnet is preferably encased in housing that is made of stainless steel or other suitable corrosive resistant material.
  • the housing can be integral with the vessel.
  • the housing exterior, which is in contact with the process stream, serves as an adsorptive surface to which contaminants adhere.
  • the inventive filtration apparatus can be readily scaled and configured to accommodate different operating conditions in order to minimize downtime and hazardous operations.
  • FIGS. 1A and 1B illustrate cross sectional side and top views, respectively, of a filtration device with housing in the form of removable adsorptive tubes for low solid matters removal;
  • FIGS. 2A and 2B illustrate cross sectional side and top views, respectively, of a filtration device with housing in the form of non-removable adsorptive tubes for low solid matters removal;
  • FIGS. 3A and 3B illustrate cross sectional side and top views, respectively, of a filtration device with housing in the form of removable adsorptive tubes for high solid matters removal;
  • FIGS. 4A and 4B illustrate cross sectional side and top views, respectively, of a filtration device with housing in the form of non-removable adsorptive tubes for high solid matters removal;
  • FIGS. 5A , 5 B and 5 C illustrate cross sectional side, top, and front views, respectively, of a filtration device with housing in the form removable adsorptive slates for high solid matters removal;
  • FIGS. 6A , 6 B and 6 C illustrate cross sectional side, top and front views, respectively, of a filtration device with housing in the form of non-removable adsorptive slates for high solid matters removal.
  • Filtration devices of the present invention are particularly effective in removing contaminants from process streams.
  • One source of the contaminants is the corrosion of process equipment and another source is the presence of active species in the process streams that ultimately lead to the formation of polar polymeric sludge. It has been demonstrated that these contaminants are paramagnetic in nature and therefore are attracted to magnets.
  • the contaminants generally comprise a mixture of different materials are acidic, low in pH, black and viscous, and tend to deposit throughout the process lines, including filters, heat exchangers, catalyst beds, thereby reducing process capacity and efficiency.
  • Magnetic intensity is temperature dependent. High temperatures can lead to a reduction in the magnetic field strength so it is preferable to avoid excessive operating temperatures which would rendering the filtration apparatus less efficient. Conversely, low temperatures operations are to be avoid especially during the cleaning stage otherwise, the paramagnetic matters will adhere to the stainless steel adsorptive housing surface too strongly so that contaminants do not readily fall off after the magnetic field is removed.
  • the operating temperatures for the filtration devices typically range from 10 to 200° C., and preferably from 20 to 150° C.
  • the superficial velocity of the process stream passing through the filtration devices typically ranges from 10 to 10,000 v/v/Hr, and preferably from 50 to 5,000 v/v/Hr.
  • the pressure drop across the filtration device is an indicator of its remaining capacity. As the pressure drop reaches between 1 to 10 Kg/Cm 2 , and preferably between 1 to 5 Kg/Cm 2 , the filtration device should be removed from the service and cleaned.
  • the present invention provides a continuous filtration device designed specifically for chemical process streams that contain relatively small amounts of solid matters and active substances that are responsible for generating polymerized sludge or corrosion byproducts.
  • a novel filtration device is applied to rejuvenate the extraction solvent in the circulation loop of an aromatic extraction process.
  • This continuous filtration device can rejuvenate the contaminated extraction solvent by removing degradation and corrosion products from the solvent stream continuously without interruption thereby achieving high capacity and operation efficiency for the aromatic extraction process.
  • the workload of the existing, high-cost solvent regenerator is substantially reduced and the level of messy, hazardous solid sludge is substantially reduced as well.
  • a preferred example of the extraction solvent is sulfolane.
  • FIGS. 1A and 1B comprises a high-pressure vessel 102 defining a compartment 116 that is sealed from the environment with a removable top cover 104 .
  • a supporting tray 108 is positioned within compartment 116 to accommodate a plurality of magnet housings 114 .
  • Supporting tray 108 is preferably configured as a rack with a round circumference that matches the contour of compartment 116 .
  • Each magnet housing 114 encases a magnetic bar 110 that has been removably inserted therein.
  • Each magnet housing which serves to isolate magnet bar 110 from direct contact with the contaminated process stream, is configured as a vertically elongated stainless steel tube with a square cross section and the plurality of tubes form a circular arrangement that is held by supporting tray 108 .
  • the number of housings 114 and associated magnetic bars 110 employed in filtration device 100 typically ranges from 1 to 30 or more.
  • a spring 106 is positioned between top cover 104 and inner cover 118 , which is on the plurality of housing 114 , to maintain the position of plurality of housing 114 within compartment 116 .
  • a fine mesh screen cylinder 112 which is configured as a basket made from metallic mesh material, is installed in the lower part of compartment 116 and encloses the plurality of magnet housing 114 .
  • the plurality of magnet housing 114 fits within the inner perimeter of screen cylinder 112 .
  • contaminated a process stream containing sulfolane solvent enters filtration device 100 through inlet 130 and the flow of the solvent is channeled initially toward the lower end of compartment 116 so that the contaminated solvent flows through screen cylinder 112 pass the plurality of magnet housing 114 before the treated solvent exits through outlet 132 .
  • the degradation and corrosion products are attracted and adhere to the stainless steel tubes of housing 114 with the aid of powerful magnetic bars 110 .
  • the removal of the degradation and corrosion products by the magnetic bar is enhanced by the presence of inner screen cylinder 112 that distributes the flow of solvent more evenly over the plurality of magnet housing 114 . This enhancement becomes crucial when the level of residual degradation and corrosion products are to be kept to a minimum.
  • the rejuvenated clean extraction solvent can be recycled back to the extraction column.
  • the filtration device After being on-stream for a certain period of time, the filtration device becomes loaded with the degradation and corrosion products and the pressure drop across the device increases.
  • the stream is then switched to an auxiliary filtration device that has been installed in a parallel position with the on-stream device.
  • Supporting tray 108 is lifted from compartment 116 along with the plurality of housing 114 that encases magnetic bars 110 .
  • Supporting tray 108 is first placed in a container and upon removal of magnetic bars 110 from housing 114 , the attracted contaminants simply fall of the surface of housing 114 with the loss of the attractive force.
  • This configuration of the filtration device is characterized by high efficiency for contaminants removal, simple construction and low maintenance costs.
  • FIGS. 2A and 2B show a modified version of the filtration device that includes magnet housing that is integral with the unit and is not removable therein.
  • filtration device 200 comprises a high-pressure vessel 202 that includes a process stream inlet 230 and a process stream outlet 232 . Except for the inlet and outlet, compartment 216 of filtration device 200 is enclosed from the environment.
  • a plurality stationary magnet housing 214 configured as vertically elongated stainless steel tubes arranged in a circular fashion within compartment 216 .
  • Each magnet housing 214 has an aperture on the sealed surface 204 of filtration device 200 so that housing 214 is as an integral part of the high-pressure vessel.
  • Magnetic bars 210 are placed into magnet housing 214 from the outside.
  • the contaminated stream is switched to a bypass line that is installed in parallel to filter 200 .
  • Magnetic bars 210 are removed from housing 214 ; upon removal of the magnetic bars, the attracted contaminants fall from outside of the vertical tubes due to the loss of the attractive force.
  • the collected contaminant sludge is flushed from the filtration device with a diluent fluid, such as water or other low value stream. Once the magnetic bars are reinserted into the housing, the cleaned filtration device is for service.
  • This simple design is especially attractive when the contaminants or the process stream is hazardous as it is not necessary to open and disassemble the filtration device or any other process equipment in order to remove the adsorbed contaminants from the device.
  • the filtration devices depicted in FIGS. 1 and 2 can be designed specifically for any chemical process stream, similar to the sulfolane solvent stream, which contains relatively smaller among of solid matters and active contaminants responsible for generating polymerized sludge or corrosion products.
  • the present invention provides continuous filtration devices designed specifically for the refinery process streams that contain relatively larger amounts of solid matters, active substances which are responsible for generating polymerized sludge or corrosion products, and/or contaminants which are undesirable to the down-stream process unit.
  • the solid matter in the front-end process streams of refineries usually contains a significant amount of iron rust particulates and other degradation and corrosion products, which tend to accumulate in process lines, valves, and pumps.
  • filtration devices with greater filtration capacity that is, equipped with more and/or larger magnetic bars, are required.
  • the filtration device as shown in FIGS. 3A and 3B is, for example, applied to remove contaminants from straight-run gas oil before it is fed into a hydrodesulfurization (HDS) unit in the refinery.
  • This filtration device can effectively replace the inefficient conventional filter and better protect the sophisticated panel heat exchanger, e.g., PACKINOX heat exchanger, and the catalyst bed of the HDS unit. Both the PACKINOX heat exchanger and the catalyst bed are vulnerable to plugging by iron rust and other paramagnetic particulates.
  • Filtration device 300 cleans the gas oil by continuously removing iron rust particulates and other corrosion products from the stream. Thus a high capacity and operation efficiency of the PACKINOX heat exchanger and the HDS unit are maintained.
  • filtration device 300 comprises a high-pressure vessel 302 with a removable cover 304 that is equipped with handle 306 , and a square or rectangular rack-shaped supporting tray 308 with magnet housing 314 in the form of vertically elongated stainless steel square tubes fitted within compartment 316 of high pressure vessel 302 .
  • the stainless steel square tubes are preferably arranged in rows in a square or a rectangular matrix to increase the total contact area of the tubes for maximum solid loading.
  • a magnetic bar 310 is placed in each stainless steel tube.
  • vertical partition plates 320 are placed between each row of the tubes to create a tortuous flow pattern pass the tubes.
  • the number of housings 314 and associated magnetic bars 310 employed in filtration device 300 typically ranges from 1 to 100 or more.
  • FIGS. 4A and 4B depict a modified version of the filtration device that includes magnet housing that is integral with the unit and is not removable therein.
  • filtration device 400 comprises a high-pressure vessel 402 with a plurality of magnet housing 414 in the form of stationary vertically elongated square stainless steel tubes arranged in rows of a square or rectangle matrix. The tubes are an integral part of the high-pressure vessel.
  • a magnetic bar 410 is placed inside each square stainless steel tube through an orifice on upper sealed surface of pressure-vessel 402 .
  • Vertical partition plates 420 are placed between each row of the tubes to optimize flow pattern through compartment 416 .
  • FIGS. 5A , 5 B, and 5 C illustrate another filtration device that is particularly suited for removing contaminants from refinery streams, such as the straight-run gas oil before it enters a HDS unit, and thereby maintain the high capacity and operation efficiency of the down-stream PACKINOX heat exchanger and the HDS unit.
  • filtration device 500 comprises a high-pressure vessel 502 sealed with a removable cover 504 that is equipped with handle 506 , and a square or rectangular-shaped rack supporting tray 508 to which a plurality of magnet housing 514 in the form of vertically elongated stainless steel column or slates are attached and fitted in compartment 516 of high pressure vessel 502 .
  • the stainless steel slates are arranged in parallel rows to increase the total contact surface area of the device for maximum solid loading.
  • the space between adjacent parallel rows of slates defines a channel through which the contaminated gas oil flow.
  • a magnetic plate 510 is placed inside of each stainless steel slate.
  • the number of housings 514 and associated magnetic bars 510 employed in filtration device 500 typically ranges from 1 to 100 or more.
  • contaminated gas oil enters filtration device 502 through inlets 530 located at the lower part on the front side of the device.
  • the iron rust particulates and corrosion products are attracted and adhere to the outside surface of the vertical stainless steel slates with the aid of the powerful magnetic plates.
  • the cleaned gas oil stream exits through an outlet 532 located in the upper part of backside of the device.
  • inlets 530 and outlets 532 define flow patterns that are parallel to the channels between adjacent slates.
  • the employment of multiple inlets better distributes the process stream flow so as to maximize the contact time between the process stream and slates.
  • filtration device 500 is taken off-line, supporting tray 508 is lifted from compartment 516 and once the magnetic plates are removed from their corresponding stainless steel slates, the contaminants will fall off.
  • FIGS. 6A , 6 B and 6 C depict a modified version of the filtration device that includes magnet housing that is integral with the unit and is not removable therein.
  • filtration device 600 comprises a high-pressure vessel 602 that defines compartment 616 into which are positioned a plurality of magnet housing 614 in the form of stationary vertically elongated stainless steel column or slates that are arranged in parallel across compartment 616 .
  • the slates are an integral part of the high-pressure vessel.
  • compartment 616 is sealed from the environment.
  • a vertical magnetic plate 610 is placed into each of magnet housing 614 through an aperture on sealed top 622 of pressure-vessel 602 .
  • filtration device 600 Operation of filtration device 600 is similar to that shown in FIGS. 5A , 513 and 5 C however once filtration device 600 is taken off-line, the magnetic plates are simply lifted out of their stainless steel slate housings whereupon the contaminants fall of into compartment 616 . The adsorbed contaminant sludge is flushed away.
  • Filtration devices of the present invention can be adapted for implementation to any refining process stream, similar to the straight-run gas oil stream, which contains relatively large among of iron rust particulates, corrosive products, and/or contaminants, which are undesirable to the down-stream process unit.
  • the filtration devices of this invention can be advantageously applied to following refinery streams: (1) feed to the C 5 and C 6 isomerization unit, (2) feed to the naphtha HDS unit, (3) feed to the reformer HDS unit, (4) feed to the kerosene HDS unit, (5) feed to the coke naphtha HDS unit, (6) feed to residual oil HDS unit, and (7) feed to coal tar naphtha HDS unit.
US12/589,314 2008-04-30 2009-10-21 Novel filtration method for refining and chemical industries Abandoned US20100065504A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US12/589,314 US20100065504A1 (en) 2008-04-30 2009-10-21 Novel filtration method for refining and chemical industries
KR1020127012838A KR101481247B1 (ko) 2009-10-21 2010-10-12 공정스트림으로부터 오염물을 연속적으로 제거하는 방법
JP2012535239A JP5521050B2 (ja) 2009-10-21 2010-10-12 精製化学工業用ろ過方法
PCT/US2010/052370 WO2011049788A1 (en) 2009-10-21 2010-10-12 Filtration method for refining and chemical industries
EP10773187A EP2491098A1 (en) 2009-10-21 2010-10-12 Filtration method for refining and chemical industries
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012021232A1 (en) 2010-08-10 2012-02-16 Amt International, Inc. Regeneration process of polar solvents from aromatic extraction process by treating with light hydrocarbons
US8663461B2 (en) 2012-03-05 2014-03-04 Amt International, Inc. Extraction process with novel solvent regeneration methods
DE102014003885A1 (de) 2013-03-27 2014-10-02 Mann + Hummel Gmbh Magnetisches Filtermedium und Verfahren zu seiner Herstellung
CN104128257A (zh) * 2014-08-03 2014-11-05 广西北流市智诚陶瓷自动化科技有限公司 多自由度磁力除铁装置
US8900449B2 (en) 2012-03-13 2014-12-02 Cpc Corporation, Taiwan Magnetic filter for refining and chemical industries
CN105536986A (zh) * 2016-02-01 2016-05-04 飞龙精工科技(苏州)有限公司 过滤系统
CN105840855A (zh) * 2016-05-12 2016-08-10 陕西科技大学 一种防止铁质杂物进入磨浆机的自动清除装置及方法
US9440947B2 (en) 2012-02-26 2016-09-13 Amt International, Inc. Regeneration of selective solvents for extractive processes
WO2016159779A1 (en) * 2015-03-30 2016-10-06 Sapeg As Device for capturing and removing magnetic material in a flow of material
US20190099762A1 (en) * 2016-03-24 2019-04-04 Air Bp Limited Magnetic Filter
WO2019203656A1 (en) * 2018-04-20 2019-10-24 Jagtech As Cleaning assembly for magnet assemblies
CN111788285A (zh) * 2018-02-14 2020-10-16 切弗朗菲利浦化学公司 Aromax*催化剂在硫转化剂吸收器中的用途及其相关优势

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636907B1 (en) 2013-05-09 2014-01-28 Amt International, Inc. Sealed magnetic filter for hazardous operations and easy clean service
JP2014229567A (ja) * 2013-05-24 2014-12-08 日揮触媒化成株式会社 正極活物質の製造方法
CN103464283B (zh) * 2013-09-25 2016-01-27 云南大红山管道有限公司 一种磁场筛选机及其选矿方法
KR102349698B1 (ko) * 2015-01-29 2022-01-12 에스케이온 주식회사 마그네틱 필터
CN104874479A (zh) * 2015-06-02 2015-09-02 重庆国际复合材料有限公司 一种玻璃纤维浸润剂除铁过滤装置
US9352331B1 (en) 2015-09-26 2016-05-31 Allnew Chemical Technology Company Filters for paramagnetic and diamagnetic substances
CN105864189A (zh) * 2016-05-12 2016-08-17 绍兴文理学院 一种全频段变结构的液压滤波方法
CN105889184A (zh) * 2016-05-12 2016-08-24 绍兴文理学院 一种采用滤波器、磁化和吸附的滤油方法
CN109622221B (zh) * 2018-12-26 2020-05-08 福州兴顺达环保科技有限公司 一种污水内废弃金属收集设备
KR102629120B1 (ko) * 2020-11-09 2024-01-24 주식회사 엘지화학 석유화학 제품 내 메탈 성분 제거방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143496A (en) * 1962-02-08 1964-08-04 Cons Edison Co New York Inc Magnetic filter apparatus and method
US4750998A (en) * 1985-06-24 1988-06-14 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Desalting filtration device
US5188239A (en) * 1991-06-17 1993-02-23 Industrial Magnetics, Inc. Tramp metal separation device
US6730217B2 (en) * 2002-03-29 2004-05-04 Insul-Magnetics, Inc. Magnetic particle separator and method
US20040182769A1 (en) * 2003-03-19 2004-09-23 Fogel Richard Edward Multi-chamber magnetic filter
US20070068862A1 (en) * 2005-09-23 2007-03-29 Sisemore Stanley L Device for focusing a magnetic field to treat fluids in conduits

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB557626A (en) 1942-05-19 1943-11-29 Neill James & Co Sheffield Ltd Improvements in or relating to magnetic separators
US2385431A (en) * 1944-01-29 1945-09-25 Sun Oil Co Process for refining of hydrocarbon oil with metallic sodium
US2459534A (en) * 1945-03-23 1949-01-18 J A Zurn Mfg Co Magnetic separator for fluid systems
NL256788A (ko) * 1958-09-12
US3448040A (en) * 1967-10-13 1969-06-03 Phillips Petroleum Co Adduct type hydrocarbon separation without filtration with a sulfolane solvent
US3985648A (en) 1974-06-27 1976-10-12 Almag Pollution Control Corporation Method and system for purifying liquid
US3953324A (en) 1974-12-04 1976-04-27 Shell Oil Company Removal of solvent
US4067810A (en) * 1976-02-09 1978-01-10 Ofco, Inc. Fluid filter magnet assembly
US4357237A (en) * 1979-11-28 1982-11-02 Sanderson Charles H Device for the magnetic treatment of water and liquid and gaseous fuels
US4298456A (en) * 1980-07-22 1981-11-03 Phillips Petroleum Company Oil purification by deasphalting and magneto-filtration
JPS5783794A (en) 1980-09-17 1982-05-25 Schloemann Siemag Ag Apparatus for cleaning lubricant and/or cooling liquid
US4944917A (en) * 1982-07-14 1990-07-31 Exxon Research And Engineering Company Use of thiosulfate salt for corrosion inhibition in acid gas scrubbing processes
US4619770A (en) * 1985-01-07 1986-10-28 Phillips Petroleum Company Method and apparatus for recovering a fluid from a filter
JPS6254790A (ja) * 1985-05-08 1987-03-10 Nippon Oil Co Ltd 常圧あるいは減圧蒸留残油中の鉄分の除去方法
US4722788A (en) 1985-05-25 1988-02-02 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Magnetic filter
US4764278A (en) * 1986-11-20 1988-08-16 Shell Oil Company Process for reducing the concentration of haloorganic compounds in water
US4946589A (en) * 1987-02-27 1990-08-07 Combustion Engineering, Inc. High volume permanent magnet filter for removing ferromagnetic impurities
US4783266A (en) * 1987-08-10 1988-11-08 Titch Duwayne E Filter for removing particles from a fluid, and method therefore
US4919816A (en) * 1989-01-31 1990-04-24 Sun Refining And Marketing Company Removal of acidic impurities in processes for solvent extraction of aromatics from nonaromatics
US5053137A (en) 1989-08-21 1991-10-01 Indian Petrochemicals Corporation Limited Process for the purification or regeneration of contaminated or spent process sulfolane
US5043063A (en) * 1990-03-21 1991-08-27 Eriez Manufacturing Company Magnetic trap and cleaning means therefor
JP2673040B2 (ja) * 1990-10-17 1997-11-05 今井産業株式会社 濾過器
JPH0770568A (ja) * 1993-09-03 1995-03-14 Nippon Oil Co Ltd 石油系重質油中の鉄不純物除去方法
US5411659A (en) * 1994-03-04 1995-05-02 Nichols; Bret E. Reusable liquid filtering system
JPH08117517A (ja) * 1994-10-19 1996-05-14 Miyawaki Inc 流体通路のストレーナ
US5571408A (en) * 1995-04-21 1996-11-05 Rising; William R. Compound clarification system
US5637226A (en) * 1995-08-18 1997-06-10 Az Industries, Incorporated Magnetic fluid treatment
DE19717869A1 (de) * 1997-04-28 1997-12-04 Gehrt Manfred Feinstschlammabscheider - mit Magnetfeldunterstützung, verbunden mit innenliegenden Schikanenleitblechen und zusätzlicher Siebfiltereinrichtung - geeignet für die Feinstschlamm-Entsorgung aus Heizwasserkreisläufen
JP2005296740A (ja) * 2004-04-08 2005-10-27 Sumitomo Chemical Co Ltd 磁気フィルター
JP2007229665A (ja) * 2006-03-02 2007-09-13 Shimonishi Seisakusho:Kk ストレーナ装置
GB2452219A (en) * 2006-06-30 2009-02-25 Shell Int Research Catalytic reaction process
JP5459943B2 (ja) * 2007-08-29 2014-04-02 株式会社ブンリ 濾過装置
ES2677324T3 (es) * 2008-04-10 2018-08-01 Cpc Corporation, Taiwan Proceso novedoso eficiente en energía y de rendimiento mejorado para la recuperación de aromáticos

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143496A (en) * 1962-02-08 1964-08-04 Cons Edison Co New York Inc Magnetic filter apparatus and method
US4750998A (en) * 1985-06-24 1988-06-14 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Desalting filtration device
US5188239A (en) * 1991-06-17 1993-02-23 Industrial Magnetics, Inc. Tramp metal separation device
US6730217B2 (en) * 2002-03-29 2004-05-04 Insul-Magnetics, Inc. Magnetic particle separator and method
US20040182769A1 (en) * 2003-03-19 2004-09-23 Fogel Richard Edward Multi-chamber magnetic filter
US20070068862A1 (en) * 2005-09-23 2007-03-29 Sisemore Stanley L Device for focusing a magnetic field to treat fluids in conduits

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8246815B2 (en) 2010-08-10 2012-08-21 Amt International Inc. Methods for regeneration of solvents for extractive processes
WO2012021232A1 (en) 2010-08-10 2012-02-16 Amt International, Inc. Regeneration process of polar solvents from aromatic extraction process by treating with light hydrocarbons
US9440947B2 (en) 2012-02-26 2016-09-13 Amt International, Inc. Regeneration of selective solvents for extractive processes
US8663461B2 (en) 2012-03-05 2014-03-04 Amt International, Inc. Extraction process with novel solvent regeneration methods
US8900449B2 (en) 2012-03-13 2014-12-02 Cpc Corporation, Taiwan Magnetic filter for refining and chemical industries
DE102014003885A1 (de) 2013-03-27 2014-10-02 Mann + Hummel Gmbh Magnetisches Filtermedium und Verfahren zu seiner Herstellung
CN104128257A (zh) * 2014-08-03 2014-11-05 广西北流市智诚陶瓷自动化科技有限公司 多自由度磁力除铁装置
WO2016159779A1 (en) * 2015-03-30 2016-10-06 Sapeg As Device for capturing and removing magnetic material in a flow of material
US10807101B2 (en) 2015-03-30 2020-10-20 Jagtech As Device for capturing and removing magnetic material in a flow of material
CN105536986A (zh) * 2016-02-01 2016-05-04 飞龙精工科技(苏州)有限公司 过滤系统
US20190099762A1 (en) * 2016-03-24 2019-04-04 Air Bp Limited Magnetic Filter
US10960405B2 (en) * 2016-03-24 2021-03-30 Air Bp Limited Magnetic filter
CN105840855A (zh) * 2016-05-12 2016-08-10 陕西科技大学 一种防止铁质杂物进入磨浆机的自动清除装置及方法
CN111788285A (zh) * 2018-02-14 2020-10-16 切弗朗菲利浦化学公司 Aromax*催化剂在硫转化剂吸收器中的用途及其相关优势
WO2019203656A1 (en) * 2018-04-20 2019-10-24 Jagtech As Cleaning assembly for magnet assemblies
US11684931B2 (en) 2018-04-20 2023-06-27 Jagtech As Cleaning assembly for magnet assemblies

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KR101481247B1 (ko) 2015-01-09
US9080112B2 (en) 2015-07-14

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