Sorption store with improved heat transfer

Patent metadata

Field	Value
Publication number	US-2016201855-A1
Application number	US-201414911884-A
Country	US
Kind code	A1
Filing date	Aug 11, 2014
Priority date	Aug 15, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

Sorption store ( 10 ) particularly for storing an adsorbed natural gas, said sorption store ( 10 ) containing at least one adsorbent medium ( 40 ), wherein said sorption store ( 10 ) is equipped with an external passive cooling ( 72 ).

First claim

1 .- 15 . (canceled)

16 . A sorption store for storing an adsorbed natural gas, said sorption store containing at least one adsorbent medium, wherein said sorption store is equipped with an external passive cooling, further comprising an active circulating cooling system, by means of which in an interior of said sorption store a gas current due to density differences of the gas to be absorbed is induced.

17 . The sorption store according to claim 16 , wherein said external passive cooling is a connection of said sorption store to a vehicle or a vehicle's body, respectively.

18 . The sorption store according to claim 17 , wherein said connection of said sorption store to said vehicle or vehicle's body is a surface contact between said sorption store and said vehicle or said vehicle's body, respectively.

19 . The sorption store according to claim 16 , wherein ⅛ up to ⅔ of the surface wall of the sorption store is in contact with a vehicle or said vehicle's body.

20 . The sorption store according to claim 17 , wherein the sorption store is horizontally mounted and is connected with its upper part to the vehicle or the vehicle's body.

21 . The sorption store according to claim 16 , wherein the temperature of the surface wall of said sorption store is constant during a filling operation thereof.

22 . The sorption store according to claim 16 , wherein said surface wall is a double wall at least in those areas of the sorption store which are not in contact with the vehicle or the vehicle's body.

23 . The sorption store according to claim 16 , wherein in an interior of said sorption store a gas current due to gravity differences is induced.

24 . The sorption store according to claim 16 , wherein a homogeneous temperature distribution is established in the sorption store.

25 . The sorption store according to claim 17 , wherein the vehicle or the vehicle's body itself is a heat-providing heat source or a heat-receiving heat storage means.

26 . A method for reducing a filling time of the sorption store according to claim 16 with an adsorbed natural gas (ANG), comprising:
a) filling a natural gas to be absorbed by at least one adsorbent medium within the sorption store,
b) active cooling of an interior of the sorption store via a cooling and circulation system,
c) passive cooling of a surface wall of the sorption store by heat conduction to a vehicle and
d) creating a homogeneous temperature distribution by inducing at least one gas-eddy-system in the interior due to gravity and/or density differences of the adsorbed natural gas (ANG).

27 . The method according to claim 26 , wherein according to method step b), a center area of said sorption store is cooled actively to enhance adsorption capacity of the at least one adsorbent medium.

28 . The method according to claim 26 , wherein a surface temperature of the surface wall of the sorption store is maintained constant upon a filling operation of said sorption store.

Assignees

• Basf Se
• Basf China Co Ltd

Inventors

• Weickert Matthias
• Marx Stefan
• Müller Ulrich
• Renze Peter

Classifications

• F17C11/007 Primary

  for hydrocarbon gases, such as methane or natural gas, propane, butane or mixtures thereof [LPG] · CPC title

• F17C2270/01

  for fluid transport or storage · CPC title

• F17C2221/033

  Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG · CPC title

• F17C2260/023

  Avoiding overheating · CPC title

• F17C5/02

  for filling with liquefied gases · CPC title