| 释义 |
catalytic, a.|kætəˈlɪtɪk|
[ad. Gr. καταλυτικός able to dissolve, f. κατάλυσις catalysis.]
Of the nature of, or pertaining to, catalysis; having the power of acting by catalysis. Also fig. catalytic cracker: the device in which catalytic cracking is carried out; catalytic cracking [crack v. 23]: the cracking of petroleum oils by a process using a catalyst.
1836[see catalysis 2]. 1839–47Todd Cycl. Anat. III. 153/2. 1842 W. Grove Corr. Phys. Forces 86 That the increased electrolytic power of water..depends upon a catalytic effect. 1861Times 26 Oct. 6/5 Bodies known as catalytic agents. 1876tr. Schutzenberger's Ferment. 43 The theory of catalytic forces..maintained by Berzelius. 1927Chem. Abstr. 644 (title) Catalytic cracking of heavy fractions of petroleum... A special exptl. app. for catalytic cracking, in which a continuous influx of oil and recovery of the gas, oil and volatile products is carried out, is described. 1943in Amer. Speech (1944) XIX. 150/1 Supersonics..may usher in a new age of chemistry with radio being used as a catalytic agent. 1945Koestler Yogi & Commissar 32 It has to act as a catalytic agent, as the saliva in the process of creative assimilation. 1951Economist 11 Aug. 358 The modern catalytic cracker..may use as many as 350 instruments measuring and controlling such variables as flow, pressure and temperature.
Hence cataˈlytically adv., in a catalytic manner, by catalytic action.
1845G. E. Day Simon's Anim. Chem. I. 19 Fibrin is stated to have the power of decomposing binoxide of hydrogen catalytically.
Add: catalytic converter, a device fitted to the exhaust system of some internal-combustion engines which catalyses the oxidation of some of the exhaust gases, rendering them less harmful as pollutants.
1955Sci. News Let. 22 Jan. 54/1 The best way to remove carbon monoxide from auto fumes appears to be the use of nonleaded gasoline and a catalytic converter, Dr. W. L. Faith, chief engineer of the Southern California Air Pollution Foundation, said. 1984Sydney Morning Herald 10 Nov. 3/3 Imported cars will begin arriving fitted with expensive catalytic converters in anticipation of the introduction of lead-free petrol from January 1, 1986. 1989J. Button How to be Green 190 In the USA the compulsory fitting of catalytic converters has cut carbon monoxide emission by 90 per cent. |