PDF Publication Title:
Text from PDF Page: 012
13 shown) in a stream 458 from Exchanger 485 at tempera tures of 80° to 110° F. The “rich” methanol, which isthe methanol contain 14 exchanged in the Lean-Rich Methanol Exchanger 462 with the “rich” methanol stream 461 to recover the refrigerated energy in stream 461. The cooled “lean” methanol exits the Lean-Rich Methanol Exchanger 462 via a stream 479. The “lean” methanol in stream 479 is further refrigerated to a tem perature level of 10° to —~35° F. by a Methanol Chiller 480 using an external refrigeration source such as freon or propane or other suitable refrigerant (not shown in detail). The chilled “lean” methanol flows from the Methanol Chiller 480 via a stream 481 to the top of the Methanol Absorber 496. 4,861,360 ing the absorbed carbon dioxide, ethane and other hy drocarbons, leaves the bottom of the Methanol Ab-_ sorber 496 in a stream 460. This stream is split into two streams, 461 and 464. The “rich” methanol stream 461 is cross-exchanged in a Lean-Rich Methanol Exchanger 462 with the “lean” methanol from a stream 478 to heat the “rich” methanol in stream 461 to a temperature of 80° to 110° F. which exits in a stream 463 and corre spondingly reduces the “lean” methanol in stream 478 to a temperature level of —- 10° to 20° F. which exits in a stream 479, recovering the cryogenic refrigerant en ergy in stream 461. The other “rich” methanol stream 464 is cross-exchanged in a Rich Methanol-Refrigerant Exchanger 465 to subcool the propane, freon or other suitable refrigerant (not shown in detail), for use else where as discussed above and correspondingly heat the “rich”methanolinstream465toatemperatureof80°to20 stream491.Theef?ciencyoftheseparationwithre 110° P‘. which exits Exchanger 465 in a stream 466. Streams 463 and 466 are recombined in a stream 488. The “rich” methanol is stream 488 is reduced in pres sure to 300 to 500 psia by a Pressure Control Valve 497 locatedattheexitofstream488.Thepressureissetand 25 Theheavierhydrocarbonsaredifficulttoseparatefrom controlled by a Pressure Controller 498 which manipu lates Valve 497. The “rich” methanol exits Valve 497 in a stream 499 which feeds a CO2-Splitter 472. methanol. In fact, the pentane-and-heavier hydrocar bons would form an azeotrope with methanol. Fortu nately, this separation is very easy to achieve. Because ofthismethodofseparation,theoperatingtemperatures Stream 499 is fed to the COz/Methanol Splitter 472. Thecarbondioxideinstream499isseparatedfromthe30 andpressureof—40°to0°F.and300to400psiainthe methanol in stream 499 in the Cog/Methanol Splitter 472 with the carbon dioxide exiting as a vapor or gas and the methanol exiting as a liquid. The overhead gas exitsfromtheCOz/MethanolSplitter472inastream' totheNGLTower419.Theethaneandcarbondioxide aredistilledintheNGL Tower419asatopgasproduct at temperature of 0° to 30° F. If hydrogen sul?de is present, it will become a part of the ethane and carbon dioxideproduct.TheNGL Tower419isoperatedat pressuresof300to500psia.The bottomfromtheNGL 467 and is chilled by the freon or propane or other suitable refrigerant (not shown in detail) to a tempera tureof0°to40°F.The chilledstreamexitsthecoy Methanol Splitter Condensor 500 via a stream 468 and flows to a cOy/Methanol Re?ux Accumulator 469. ThevaporandliquidareseparatedinCOZ/Methanol40 Tower429iscooledto120°F.toexitthesystemasa Re?ux Accumulator 469. The liquid re?ux ?ows from the Re?ux Accumulator 469 to a COg/Methanol Re?ux Pump 470 via an exit stream 485 and ispumped from pump 470 to the CO2/~ Methanol Splitter 472 via an outlet stream 471. The carbon dioxide vapor or gas exits the Accumula tor 469 via a stream 482 to the inlet of a C02 Compres sor 483 where the carbon dioxide is compressed to a pressure of 600 to 650 psia. The carbon dioxide exits the Compressor 483 in a stream 501 to cross-exchange with propane, freon or other suitable refrigerant (not shown in detail) in the Cog-Refrigerant Exchanger 484. The carbon dioxide is condensed and exits the Cog-Refrig erant Exchanger 484 via a stream 486 where itcombines with stream 450 to form stream 487. Stream 487 exits the system as the liquid carbon dioxide product. propane-and-heavier hydrocarbon product liquid in stream 439. The overhead vapor from the COz-Splitter 412 in stream 417 and the overhead vapor from the NGL 45 Tower 429 in stream 424 are combined and subse quently compressed by compressor 429 to a pressure of 600 to 650 psia. This compressed gas is a mixture of the ethane-methane-lighter components and carbon diox ide. This compressed vapor in stream 431 is essentially free of propane and heavier hydrocarbons. This stream 431 is subsequently chilled and fed to the COz/Light Ends Separator Tower 495. In the cOz/Light Ends Separator Tower 495 the light ends comprising the methane and lighter compo nents, roughly 35 to 40 percent of the ethane and 15 to 20percentofthecarbondioxide,areseparatedfromthe remaining ethane and carbon dioxide as an overhead vapor stream 440. The bottoms ethane and carbon diox ide in stream 449 is recovered as a liquid product. This The Col/Methanol Splitter 472 bottoms exits in a stream 475 which isheated from 300° to 350° F. to a temperature of 320° to 380° F. by a Cog/Methanol Splitter Reboiler 474. Steam or some other suitable 60 alternate embodiment permits recovery of the 80 per means ofheatisrequiredfortheCOg/Methanol Splitter 474. Part of the ?uid is vaporized and returned to the COZ/Methanol Splitter 472 via a stream 473. The hot “lean” methanol liquid exits the Col/Methanol Splitter Reboiler 474 in a stream 476. The hot “lean” methanol 65 in the carbon dioxide does not create any problems in iscooled to 120° F. by the Air Cooler 477 located atthe outlet of stream 476. The cooled “lean” methanol exits Cooler 477 in a stream 478 and is subsequently cross therecoveryofoilfromexistingoilreservoirsusingthis ?uid as a misciable injectant. Additionally, in time, the ethane will be recycled to ultimately be recovered, In operation, the methane, lighter components, to gether with most of the carbon dioxide and some eth .ane, in feed stream 401 are separated in CO2-Splitter 412 fromthepropane-and-heavierhydrocarbons.Approxi mately?fteentotwentypercentoftheincomingcarbon dioxide and ?ve to ten percent ofthe incoming ethane in feed stream 401 is distributed to the bottoms product in spect to carbon dioxide and ethane distribution between thetopandbottomproductsisnotcritical.An effective separation of the propane-and-heavier hydrocarbons fromthemethane-and-lightercomponentsisimportant. Cog-Splitter 412 are such that solidi?cation of carbon dioxide will not occur. The bottoms stream 491 from Cog-Splitter 412 isfed cent of the carbon dioxide as a liquid product in stream 487 with an effective reduction in plant cost and utility requirements. This alternate embodiment is at some sacri?ce in the recovery of the ethane. The ethane leftPDF Image | CARBON DIOXIDE ABSORPTION METHANOL PROCESS
PDF Search Title:
CARBON DIOXIDE ABSORPTION METHANOL PROCESSOriginal File Name Searched:
US4861360.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |