Gasification

Act or proce of converting into gas. Gas'ify, v. a. [ gas, and Lat. facio.] To convert into gas or an aëriform fluid by combination with caloric. Gas'ket, n. ( Naut.) A plaited cord fastened to the sail-yard of a ship, and used to furl and tie up a sail firmly to the yard, by wrapping it around both six or seven times, the turns being at a competent distance from each other. ( Mach . ) The plaited hemp used for packing the piston of the steam-engine and its pumps. Gas'kill, in New York , a post-office of Tioga co. Gas/kill, in Pennsylvania , a township of Jefferson co. Pop . (1890) 682. Gas'kins, n. Same as GALLIGASKINS (q. v . ). Gas-lamp, n. A lamp lighted by gas; a gasalier. Gas'-light, or Illuminating Gas, n. The mix- ture of inflammable elastic fluids obtained by the de- structive distillation of coal or other carbonaceous sub- stances. While many attempts, more or le succe ful, have been and are still made to use other substances, coal, on account of its cheapne , is almost altogether used for the production of gas in large quantities, and for this purpose those species of bituminous coal are chosen that contain the most hydrogen and are most free from sulphur. When coal is burned in the open air, or in an ordinary stove, the principal products are carbonic acid and water, small quantities of ammonia and sul- phurous acid, and finely-divided carbon in the form of Boot. When it is burned in close ve els, the products. are much more numerous and complicated. The most important gaseous matters are light and heavy carbu- retted hydrogen gases, hydrogen.carbonic oxide, carbonic acid, sulphurous acid, sulphuretted hydrogen, and ammo- nia. These separate as liquids coal-tar naphtha, and coal- tar; and çoke remains as a solid. To render the gaseous products available for lighting purposes, all the above- named must be removed except the light and heavy carburetted hydrogen, since they not only interfere with IMG:content-0329.png:[blocks in formation]