US 11,946,006 B2
Method and system for producing a fuel from biogas
Brian Foody, Ottawa (CA); Patrick J. Foody, Ottawa (CA); and John Dechman, Ottawa (CA)
Assigned to logen Corporation, Ontario (CA)
Appl. No. 17/597,110
Filed by Iogen Corporation, Ottawa (CA)
PCT Filed Jul. 6, 2020, PCT No. PCT/CA2020/050936
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2021/003564, PCT Pub. Date Jan. 14, 2021.
Claims priority of provisional application 62/872,007, filed on Jul. 9, 2019.
Prior Publication US 2022/0267688 A1, Aug. 25, 2022
Int. Cl. C10L 3/10 (2006.01); C12M 1/00 (2006.01); C12M 1/10 (2006.01); C12M 1/107 (2006.01)
CPC C10L 3/10 (2013.01) [C12M 21/04 (2013.01); C12M 47/18 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of producing a fuel comprising:
a) filling a pressure vessel system with biogas;
b) transporting the pressure vessel system containing the biogas from a first location to a second location; and
c) unloading the biogas transported in step (b), said unloading comprising removing the biogas from the pressure vessel system at the second location, thereby reducing a pressure of the biogas, said removing comprising:
(i) controlling a flow rate to provide a total decant time greater than 40 minutes; or
(ii) actively heating biogas contained within a pressure vessel of the pressure vessel system; or
(iii) a combination of (i) and (ii), and
d) feeding the biogas unloaded in step (c) into a biogas upgrading system, a fuel production process, or a combination thereof,
wherein step (i), or (ii), or (iii) is performed so as to reduce risk of phase change resulting from the pressure reduction and such that a temperature of the biogas within the pressure vessel system, in degrees Celsius, is greater than

OG Complex Work Unit Math
as the biogas is unloaded, where P is the pressure of the biogas in the pressure vessel system in MPa.