| 单词 |
pyrolysis |
| 释义 |
pyrolysis|paɪˈrɒlɪsɪs|
[f. pyro- + -lysis.]
Decomposition of a substance by the action of heat; loosely, any chemical change produced by heating.
1890Billings Med. Dict. II. 420/1 Pyrolysis, dry distillation, decomposing by heat. 1928W. A. Gruse Petroleum & its Products ix. 164 The growth of the petroleum industry, and of the gas-making processes using petroleum, prompted a number of interesting theoretical researches on low-temperature, and particularly on high-temperature, pyrolysis. [Note] The use of this word was suggested in 1918 by W. A. Hamor. 1928Fuel in Sci. & Pract. VII. 539/2 Benzene has been found to be an important product of pyrolysis of methane between 875..and 1,100 deg. Cent. 1943Endeavour Jan. 27/2 In 1924–25 Kennaway succeeded in producing carcinogenic tars by the pyrolysis of petroleum, skin, hair, yeast and cholesterol. 1954Chem. & Industry 13 Nov. 1418/1 It is possible that the presence of the polycyclic hydrocarbons..is due to the pyrolysis of acetylene which is known to occur in cigarette smoke. 1968A. A. Baker Unsaturation in Org. Chem. ii. 20 Modern investigations on the pyrolysis of carbon compounds have shown that when ethyl alcohol is passed through a glass tube at 610°–630°C, the yield of ethylene is only about 9 per cent. 1975New Scientist 7 Aug. 315/2 Gas evolved by pyrolysis from any organic material will pass to a detector to check for the presence of carbon-14. 1977Nat. Westminster Bank Q. Rev. Aug. 68 Another promising possibility is the use of Pyrolysis which involves the heating of the refuse in the absence of air in order to produce gas, liquid and char which can all be used as fuel. |
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