1. A method of producing a substitute natural gas (SNG), the method comprising:
generating carbon monoxide and hydrogen using coal and a metal fuel; and
generating methane from the generated carbon monoxide and hydrogen.
2. The method of claim 1, wherein the generating of the carbon monoxide and the hydrogen comprises:
generating the carbon monoxide and primary hydrogen by gasifying the coal in a first gasification unit;
generating secondary hydrogen by reacting the metal fuel in a second gasification unit; and
supplying the secondary hydrogen generated in the second gasification unit to the first gasification unit.
3. The method of claim 2, further comprising supplying heat generated from the generating of the secondary hydrogen in the second gasification unit to the first gasification unit.
4. The method of claim 2, further comprising:
generating a metal oxide by reacting the metal fuel in the second gasification unit; and
reducing and reusing the metal oxide as the metal fuel.
5. The method of claim 2, wherein the metal fuel comprises aluminum powder or magnesium powder.
6. The method of claim 4 further comprising removing impurities from the generated carbon monoxide and hydrogen in a gas cleaning unit.
7. The method of claim 1, wherein the generating of the carbon monoxide and the hydrogen comprises generating carbon monoxide and hydrogen by gasifying both the coal and the metal fuel in the first gasification unit.
8. The method of claim 7 further comprising adding an alkaline material along with the metal fuel to the first gasification unit.
9. The method of claim 8, wherein the metal fuel comprises aluminum powder or magnesium powder, and the alkaline material is selected from the group consisting of sodium hydroxide, potassium hydroxide, and gallium.
10. The method of claim 7, wherein the gasifying both the carbon monoxide and the hydrogen comprises:
generating the carbon monoxide and primary hydrogen by reacting the coal with water and oxygen; and
generating secondary hydrogen by reacting the metal fuel with water and a catalyst.
11. The method of claim 10, further comprising generating heat from the generating the secondary hydrogen by reacting the metal fuel with the water and the catalyst.
12. The method of claim 7 further comprising removing impurities from the generated carbon monoxide and hydrogen in a gas cleaning unit.
13. A substitute natural gas producing device comprising:
a first gasification unit which generates carbon monoxide and primary hydrogen using coal and a metal fuel;
a second gasification unit which generates secondary hydrogen using a metal fuel,
wherein the second gasification unit supplies the generated secondary hydrogen to the first gasification unit;
a gas cleaning unit which removes impurities from the generated carbon monoxide and hydrogen; and
a metanation unit which generates the substitute natural gas from the generated carbon monoxide and primary and secondary hydrogen.
14. The substitute natural gas producing device of claim 13, wherein the second gasification unit supplies heat generated from the generating of the secondary hydrogen in the second gasification unit to the first gasification unit.
15. The substitute natural gas producing device of claim 14, wherein
the first gasification unit generates the carbon monoxide and primary hydrogen by reacting the coal with water and oxygen; and
the second gasification generates secondary hydrogen by reacting the metal fuel with water and a catalyst.
16. A substitute natural gas producing device comprising:
a gasification unit which generates carbon monoxide and hydrogen using coal and a metal fuel;
a gas cleaning unit which removes impurities from the generated carbon monoxide and hydrogen; and
a metanation unit which generates the substitute natural gas from the generated carbon monoxide and primary and secondary hydrogen,
wherein the gasification unit is configured to intake alkaline material.
17. The method of claim 16, wherein the metal fuel comprises aluminum powder or magnesium powder, and the alkaline material is selected from the group consisting of sodium hydroxide, potassium hydroxide, and gallium.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A golf club head assembly, comprising, in combination:
a first discrete, interchangeable weight portion;
a second discrete, interchangeable weight portion having a different weight profile as compared to the first interchangeable weight portion;
a face with milled grooves therein;
a hosel;
a body adapted to receive and retain accessibly and detachably one of: the first interchangeable weight portion, and the second interchangeable weight portion; and
the first interchangeable weight portion when received and retained accessibly and detachably in the body presenting a first center of gravity relative to the body to which it is received and retained accessibly and detachably;
the second interchangeable weight portion when received and retained accessibly and detachably in the body presenting a second center of gravity relative to the body to which it is received and retained accessibly and detachably, the second center of gravity different from the first center of gravity;
where the shaft alignment configuration of the hosel and a weight configuration provided by the received and retained interchangeable weight portion alters a balance of the golf club head.
2. The golf club head assembly as described in claim 1 wherein the hosel is a modular hosel either integrated with or connected to the head and having one of different shaft alignment configurations coupled to the body.