On a typical flight with nearly full airplane 737-800 buns approximately 2400 kg/hour.
Fuel hourly burn rate for a D6 caterpillar bulldozerf
the Hourly fuel burn rate varies depending on altitude, speed, and amount of fuel left. On average, it will burn 20,000 lbs of fuel per hour.
The rate is 252USG
Fuel Consumption, gallons per hour: 233
A KC-135 has a fuel burn rate of approximately 2200 gallons per hour when flying at cruising speed and altitude.
Fuel Consumption: 479 gallons per hour
13000 pounds
Something about 18.000 LBS /HR
680 gall/HB
You only have a few choices: -- reduce the total weight (mass) of the rocket and its payload -- burn fuel faster -- burn fuel at the same rate but use fuel with a greater specific impulse
Based on maximum take off weight ( 93,500Kg) Optimum Altitude ISA +15 fuel burn 3200 Kg/H . regards
All else being equal, for the same material, the more dense it is (i.e. the less air it contains) the slower it will burn.There is no overall general rule relating density of different substances and their burn rate.