Carbureted water gas

Blue gas, or blue-water gas, so-called because of the color of the flame upon burning (10), was discovered in 1780 when steam was passed over incandescent carbon (qv), and the blue-water gas process was developed over the period 1859—1875. Successfiil commercial appHcation of the process came about in 1875 with the introduction of the carburetted gas jet. The heating value of the gas was low, ca 10.2 MJ /m (275 Btu/fT), and on occasion oil was added to the gas to enhance the heating value. The new product was given the name carburetted water gas and the technique satisfied part of the original aim by adding luminosity to gas lights (10). 

Miscellaneous Fuels A variety of gases have veiy minor market shares. These include reformed gas, oil gases, producer gas, blue water gas, carbureted water gas, coal gas, and blast-furnace gas. The heating values of these gases range from 3.4 to 41 MJ/m (90 to 1100 Btii/ftq. They are produced by pyrolysis, the water gas reaction, or as by-products of pig-iron production. 

Coke-oven gas Producer gas Water gas Carbureted water gas Synthetic coal gas... 

Kalt-luft, /. cold air. -luftgas, n. carbureted water gas. -nachverdichten, n. (Metal.) cold working following heat treatment. -schUff, m. (Paper) cold-groimd pulp, -sprbdigkeit, /. cold-shortness. 

Carbureted Water Gas, Coke Oven Gas and Natural Gas. Based on average compositions. Actual properties will differ... 

Hydrogen sulfide in manufactured gases may range from approximately 2.30 g/m (100 gr/100 ft ) in blue and carbureted water gas to sever hundred grains in coal- and coke-oven gases. Another important sulfur impurity is carbon disulfide, which may be present in amounts varying from 0.007 to 0.07 percent by volume. Smaller amounts of carbon oj sulfide, mercaptans, and thiophene may be found. However, most of the impurities are removed during the purification process and either do not exist in the finished product or are present in only trace amounts. 

The heating value of this gas is low (<300 Btu/ft3) and, to enhance it, oil may be atomized into the hot gas to produce carbureted water gas, which has a higher heat content. 

To enhance the heating value of the gas product, a cyclic steam-air process was developed in 1873. This process produced water gas, composed chiefly of carbon monoxide and hydrogen, which had a higher heat value (12,000-13,000 kJ/m3) compared with the producer gas. Furthermore, by adding oil to the reactor, the heating value was enhanced (to 19,000-20,500kJ/m3). This type of fuel gas, carbureted water gas, became the standard for gas distributed to residences and industry in the U.S. until the 1940s. 

Composition (mol %) Oven Gas Producer Gas Water Gas Carbureted Water Gas Synthetic Coal Gas... 

Carburetted water gas Is the result of combining the water gas and oil gas methods. Oil is sprayed into a brick lined chamber during the blow period of the BWG plant with air. This heats the bricks to around 1000°C. The ratio of the two determines the quality. Efficiency of cracking is of order 75%. Wobbe index of the resultant gas of order 24.9 MJ/m. ... 

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