US 12,303,864 B2
Hydrocarbon adsorption and desorption complex comprising zeolite with controlled cation and preparation method therefor
Jungkyu Choi, Seoul (KR); Kwan-Young Lee, Seoul (KR); Jinseong Kim, Seoul (KR); and Eunhee Jang, Anyang-si (KR)
Assigned to Korea University Research and Business Foundation, Seoul (KR)
Filed by Korea University Research and Business Foundation, Seoul (KR)
Filed on Nov. 23, 2021, as Appl. No. 17/533,712.
Claims priority of application No. 10-2020-0158372 (KR), filed on Nov. 24, 2020.
Prior Publication US 2022/0161227 A1, May 26, 2022
Int. Cl. B01J 20/18 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 23/72 (2006.01)
CPC B01J 20/18 (2013.01) [B01J 20/28004 (2013.01); B01J 20/3078 (2013.01); B01J 23/72 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A hydrocarbon adsorption and desorption complex comprising:
zeolite particles containing hydrogen cations;
copper ions chemically bounded to the zeolite particles; and
metal oxides provided on surfaces of the zeolite particles,
wherein the zeolite particle is a zeolite socony Mobil-5 (ZSM-5)-based particle,
wherein a molar ratio of sodium to aluminum (Na/Al) in the zeolite particles is 0.2 or less,
wherein an average diameter of the metal oxides is 1 to 10 nm,
wherein the hydrocarbon adsorption and desorption complex has a micropore having a size of 1 nm or less with a volume of 0.060 to 0.072 cm3/g,
wherein a Si/Al molar ratio of the hydrocarbon adsorption and desorption complex is 11.3±1.3 to 12.7±2.1,
wherein the hydrocarbon adsorption and desorption complex is subjected to hydrothermal treatment using 5 to 15 mol % of water vapor at 600° C. to 900° C. for one hour to 36 hours,
wherein an adsorption and desorption performance of the hydrocarbon adsorption and desorption complex satisfies the following Formula 1:

OG Complex Work Unit Math
where QIn represents the amount of hydrocarbons injected into the hydrocarbon adsorption and desorption complex,
QOut represents the amount of hydrocarbons released through the hydrocarbon adsorption and desorption complex,
A is a number of 5 or more, and represents a hydrocarbon treatment efficiency, and
wherein an average diameter of a particle size of the hydrocarbon adsorption and desorption complex is 300 to 1500 nm.