Coal dissolving process

Claim 2

THE PROCESS FOR DISSOLVING SUB-BITUMINOUS COAL WHICH COMPRISES HEATING AT ABOUT 400*C. TO ABOUT 425*C. UNDER A TOTAL PRESSURE OF FROM ABOUT 2000 TO ABOUT 5000 PSIG, A MIXTURE OF SAID FINELY DIVIDED COAL, A HYDROGEN DONOR OIL IN A WEIGHT RATIO TO SAID COAL OF FROM ABOUT 1:1 TO 5:1, CARBON MONOXIDE, HYDROGEN IN AN AMOUNT SUCH THAT ITS PARTIAL PRESSURE IS ABOUT THE SAME AS THAT OF SAID CARBON MONOXIDE, WATER IN AN AMOUNT SUCH THAT THE MOLAR RATIO OF WATER TO CARBON MONOXIDE IS FROM ABOUT 2:1 TO 1:2, AND AS A PROMOTER, AN ALKALI METAL OR AMMONIUM MOLYBDATE IN AN AMOUNT OF FROM ABOUT 0.5 TO ABOUT 10% BY WEIGHT OF SAID COAL.

Claim 3

The process of claim 1 where the oil is anthracene oil and the promoter is an alkali metal molybdate.

Claim 4

The process of claim 1 where the oil is a recycle oil and the promoter is sodium molybdate.

Claim 5

The process of claim 1 where the oil is a recycle oil and the promoter is ammonium molybdate.

Claim 6

The process of claim 1 where the CO and hydrogen are derived from producer gas.

Claim 7

The process of dissolving sub-bituminous coal to form a liquid product similar to crude oil which comprises heating at a temperature of about 415*C. and at a total pressure of about 3000 psig, a mixture of said finely divided coal, anthracene oil, hydrogen and carbon monoxide obtained as producer gas, water in an amount such that the molar ratio of water to carbon monoxide is from about 2:1 to 1:2, and ammonium molybdate, the weight ratio of oil to coal being about 2:1, the amount of hydrogen being such that its partial pressure is about the same as that of said carbon monoxide, and the amount of ammonium molybdate being from about 1% to about 7% by weight of said coal.

Claim 8

The process of dissolving sub-bituminous coal to form a liquid product similar to crude oil which comprises heating at a temperature of about 415*C. and at a total pressure of about 3000 psig, a mixture of said finely divided coal, anthracene oil, hydrogen and carbon monoxide obtained as producer gas, water in an amount such that the molar ratio of water to carbon monoxide is from about 2:1 to 1:2, and ammonium molybdate, the weight ratio of oil to coal being about 2:1, the amount of hydrogen being such that its partial pressure is about the same as that of said carbon monoxide, and the amount of ammonium molybdate being from about 1% to about 7% by weight of said coal.