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The first production engine with a variable compression ratio was introduced in 2019. Variable compression ratio is a technology to adjust the compression ratio of an internal combustion engine while the engine is in operation. This is done to increase fuel efficiency while under varying loads. Variable compression engines allow the volume ...
For gas oil, MCR provides a useful correlation in the manufacture of gas there from. [5] For delayed cokers, the MCR of the feed correlates positively to the amount of coke that will be produced. [7] For fluid catalytic cracking units, the MCR of the feed can be used to estimate the feed's coke-forming tendency. [8]
A coke oven at a smokeless fuel plant, Abercwmboi, South Wales, 1976. The industrial production of coke from coal is called coking. The coal is baked in an airless kiln, a "coke furnace" or "coking oven", at temperatures as high as 2,000 °C (3,600 °F) but usually around 1,000–1,100 °C (1,800–2,000 °F). [2]
For gas oil, Concarbon provides a useful correlation in the manufacture of gas there from. [4] For delayed cokers, the Concarbon of the feed correlates positively to the amount of coke that will be produced. [5] [6] For fluid catalytic cracking units, the Concarbon of the feed can be used to estimate the feed's coke-forming tendency. [7]
Needle coke, also called acicular coke, is a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries and is particularly valuable because the electrodes must be replaced regularly. Needle coke is produced exclusively from either fluid catalytic cracking (FCC) decant oil or coal tar pitch.
For air with a heat capacity ratio =, then =; other gases have in the range 1.09 (e.g. butane) to 1.67 (monatomic gases), so the critical pressure ratio varies in the range < / <, which means that, depending on the gas, choked flow usually occurs when the downstream static pressure drops to below 0.487 to 0.587 times the absolute pressure in ...
As explained above, Diet Coke and Coke Zero use different sweetening agents. Both have aspartame , which Brown explains is a low-calorie sweetener made of two amino acids (phenylalanine and ...
Variable compression ratio (VCR) is a technology to adjust the compression ratio of an internal combustion engine while the engine is in operation. This is done to increase fuel efficiency while under varying loads. Variable compression engines allow the volume above the piston at top dead centre to be changed. Higher loads require lower ratios ...