AngleDome: A Passi e Momen um-Based
Sys em o CO2En ichmen ia Selec i e
Re lec ion
Jae Un Kim
[email protected]
Abs ac
We in oduce AngleDome, a no el CO2en ichmen de ice ha ope a es using
only he physical p inciples o momen um di e gence, e lec i e wall geome y, and
con olled collision sequencing. Unlike memb ane- o sol en -based sys ems, An-
gleDome equi es no mo ing pa s, so ben s, phase change p ocesses, o acuum
cycles. Gas mix u es en e a con olled eloci y, and molecula mass-dependen
beha io esul s in ligh e gases a i ing ea lie , while hea ie CO2molecules main-
ain ajec o y and e lec e icien ly in o a cap u e channel. Pa hway dis ance
is minimized o e ain eloci y g adien s and enable con olled iming o enough
sepa a ion. Wi h expec ed CO2en ichmen o 80%, he sys em achie es e ec i e
pe o mance a signi ican ly educed ins alla ion and ope a ing cos s compa ed o
VSA/PSA and MEA sys ems. AngleDome p o ides a physically-d i en, passi e
al e na i e o indus ial gas sepa a ion, o e ing ex eme scalabili y and nea -ze o
ene gy demand.
1. In oduc ion
Gas sepa a ion is cen al o a mosphe ic managemen , clean ene gy sys ems, and ca bon
cap u e. Con en ional me hods p edominan ly ely on chemical selec i i y (e.g., MEA),
molecula sie ing (PSA/VSA), o phase-change p ocesses (c yogenic)—which, hough
e ec i e, in ol e complex equipmen , so ben deg ada ion, high ope a ing cos s, o sig-
ni ican he mal ene gy equi emen s.
AngleDome depa s om his pa adigm by:
•Using molecula momen um (p=m· ) as he selec i e d i ing o ce
•Le e aging wall e lec ion angle, no ma e ials, o di ec ional con ol
•Exploi ing sequen ial collision dynamics o a ge ed CO2isola ion
I is no a il e — i is a pa hway design ha le s gases sepa a e hemsel es.
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2. Sys em Design O e iew
The sys em consis s o :
•A s aigh inle channel (sho and low-loss)
•A e lec i e, dome-shaped in e io geome y
•A CO2cap u e channel
•An ou le o backg ound gas en ing
3. Theo e ical Basis
3.1 Momen um Di e gence
Fo a gas mix u e unde uni o m empe a u e, molecules exhibi eloci ies in e sely p o-
po ional o molecula mass:
p=m·
Thus, ligh e gases (e.g., N2, O2) a i e ea lie bu sca e mo e:
∆θ∝1
m·
3.2 Selec i e Re lec ion
The e lec ion angle θ a each wall in e ac ion is dic a ed by:
θ = (θi, m, , su ace cu a u e)
Only CO2achie es pos - e lec ion di ec ion ha leads in o he cap u e channel.
4. Sequen ial In e ac ion and Veloci y Cons ain
Veloci y p ese a ion along he inle pa h is essen ial:
(x) = 0·exp −µx
ρD
Ligh e gases a i e i s , And CO2a i es la e , main aing a cohe en ajec o y.
CO2> bg bu θCO2→cap u e pa h
2
I em AngleDome PSA/VSA MEA
Mo ing Pa s No Yes Yes
So ben /Sol en None Yes Yes
Ene gy Fan (W-le el) Comp esso (kW) Hea 100◦C+
CapEx Low Medium High
OpEx Ve y Low Medium Ve y High
Table 1: Compa ison o cos and ope a ion among CO2sepa a ion me hods.
5. Ins alla ion Cos & Ope a ion Feasibili y
6. Conclusion
AngleDome demons a es a passi e sepa a ion echnology using only geome y, low, and
physics—no so ben s o p essu e cycles. I s simplici y, cos e iciency, and scalabili y
make i sui able o decen alized CO2cap u e and a mosphe ic condi ioning.
Re e ences
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