Fuel reformer catalyst and absorbent materials
First Claim
Patent Images
1. A method for the conversion of a carbon-based fuel to a H2-rich product gas, comprising the steps of:
- (a) providing a carbon-based fuel;
(b) converting said carbon-based fuel to an intermediate gas product by contacting said carbon-based fuel with at least a first conversion catalyst;
(c) contacting said intermediate gas product with an absorbent material to absorb CO2 and form a H2-rich gas, said absorbent material having a theoretical absorption capacity for CO2;
(d) extracting said H2-rich gas from said contacting step;
(e) regenerating said absorbent; and
(f) repeating said steps (a), (b), (c), (d) and (e) at least 10 times, wherein said absorbent material retains at least about 50 mol. % of said theoretical absorption capacity after each of said repeating steps.
1 Assignment
0 Petitions
Accused Products
Abstract
Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a H2 product gas having a high H2 content and a low level of carbon oxides.
64 Citations
124 Claims
-
1. A method for the conversion of a carbon-based fuel to a H2-rich product gas, comprising the steps of:
-
(a) providing a carbon-based fuel;
(b) converting said carbon-based fuel to an intermediate gas product by contacting said carbon-based fuel with at least a first conversion catalyst;
(c) contacting said intermediate gas product with an absorbent material to absorb CO2 and form a H2-rich gas, said absorbent material having a theoretical absorption capacity for CO2;
(d) extracting said H2-rich gas from said contacting step;
(e) regenerating said absorbent; and
(f) repeating said steps (a), (b), (c), (d) and (e) at least 10 times, wherein said absorbent material retains at least about 50 mol. % of said theoretical absorption capacity after each of said repeating steps. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
-
-
3. A method as recited in claim 3, wherein said first conversion catalyst is a steam reforming catalyst.
-
66. A steam-reforming catalyst, comprising:
-
(a) a particulate support structure; and
(b) a metal dispersed on said support structure, wherein said steam-reforming catalyst is capable of achieving at least about 90% of the theoretical thermodynamic conversion of methane to hydrogen at a temperature of 600°
C., a H2O;
C ratio of 3;
1 and a gas hour space velocity (GHSV) of 5000 h−
1 in the absence of an absorbent for CO2. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
-
-
78. A particulate composite material, comprising:
-
(a) a first phase comprising an absorbent material adapted to absorb CO2; and
(b) a second phase comprising a conversion catalyst selected from the group consisting of a reforming catalyst and a water-gas shift catalyst. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
-
-
102. A method for the fabrication of composite particles including an absorbent material and a catalyst, comprising the steps of:
-
(a) forming a precursor solution, said precursor solution comprising;
(i) a liquid;
(ii) a precursor to an absorbent material; and
(iii) a precursor to a catalyst phase;
(b) atomizing said precursor solution to form precursor droplets; and
(c) heating said precursor droplets to remove said liquid therefrom and form said composite particles. - View Dependent Claims (103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115)
-
-
116. A method for the fabrication of a conversion catalyst, comprising the steps of:
-
(a) forming a precursor solution comprising a metal precursor and a support precursor; and
(b) atomizing said precursor solution to form precursor droplets;
(c) heating said precursor droplets to convert at least said metal precursor to metal-containing clusters dispersed on said support. - View Dependent Claims (117, 118, 119, 120, 121, 122, 123, 124)
-
Specification