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Coke is a fuel with few impurities and a high carbon content, usually made from coal. It is the solid carbonaceous material derived from destructive distillation of low-ash, low-sulfur bituminous coal. Cokes made from coal are grey, hard, and porous.
By distilling bituminous coal in retorts to obtain gas for illumination, or by burning it in kilns or pits, the residue left behind is called coke, which is simply coal charcoal, and is nearly pure carbon.
Coking coal, also known as metallurgical coal, is used to create coke, one of the key irreplaceable inputs for the production of steel. There are many varieties of coal in the world, ranging from brown coal or lignite to anthracite. … Coke is produced by heating coking coals in a coke oven in a reducing atmosphere.
Coke is rich in carbon which is up to 98% and is used as fuel. coke can be substituted in the place of coal as fuel. It has higher calorific value and produces more heat than coal. Coke the form of a clean fuel as it does not produce smoke while burning and it does not pollute the air like a coal.
The carbon monoxide produced by its combustion reduces iron oxide (hematite) to the iron product. Although coke is more expensive than coal, it can be used in households as a clean fuel, relatively free of smoke and impurities.
Note: These days bitumen a petroleum product is used in place of coal tar for metalling the roads. (3) Coal Gas: Coal gas is mainly a mixture of hydrogen, methane and carbon monoxide. The gases present in coal gas are combustible and hence, it is an excellent fuel. It has high calorific value.
Coke is almost pure form of carbon.
As a chemical enthusiast, Pemberton tried several opium-free alternative painkillers and experimented with coca and cola wines until he stumbled on a recipe which contained extracts of cola nut and damiana with a never-known-before taste. … He called his accidental product “Pemberton’s French Wine Coca”.
The Coca-Cola Company is a publicly listed company, meaning there is not one sole owner, but rather the company is ‘owned’ by thousands of shareholders and investors around the world. However, the largest shareowner of the company is American businessman Warren Buffett.
Zinc can promote production and incorporation of coke pores in the gasification reaction process. Zinc attributes to accelerating the decomposition of the ketone group in coke.
Coke, iron ore, sinter and limestone are fed – or charged – into the top of the furnaces. A hot air blast of temperatures around 1,000°C is injected at the bottom of the furnace through nozzles called tuyeres. As the coke burns, temperatures higher than 2,000°C are reached and this heat creates molten metal (iron).
A new machine dubbed the “Black Phantom” can turn biomass into manmade coal. … Biochar is coal made from biomass that can be buried in soil as a carbon sink or for use in farming, rather than letting decaying plants release carbon dioxide back into the atmosphere.
Abraham Darby made great strides using coke to fuel his blast furnaces at Coalbrookdale in 1709. However, coke pig iron was hardly used to produce wrought iron in forges until the mid-1750s, when his son Abraham Darby II built Horsehay and Ketley furnaces.
wood coke from charcoal having volatile constituents, the method which consists in subjecting charcoal to temperatures above the lowest cracking temperature of the volatile constituents or said charcoal during the operation of a. coking process for cracking the volatile and other constituents of the charcoal.
The coal gas and coal water fuse together with carbon and the remaining ash, forming a hard residue commonly referred to as coke.
A worker known as a “scraper” leveled off the coal by reaching in through the door in the front of the oven. He did that so the coke would burn evenly. “The coal was loaded, or “charged”, into an oven that was between two hot ovens, so that the newly-charged oven could light itself by spontaneous combustion.