This work presents the results of thermogravimetric analysis of decantoil. Figure 13 shows the representative results of CCC case without considering chemical reaction switch between coke and burden layers (henceforth referred to as CCC-2). Coke SL is the dominant reaction that deteriorates coke strength, as the pore structure of coke tends to damage with the occurrence of the following reaction (C + CO 2 = 2 C O Δ H 1373 Θ = 166.6 k J / m o l). It is the redox reaction of a chemical equilibrium mixture of carbon monoxide and carbon dioxide at a given temperature. This is done by re­duc­ing iron from its com­pounds with car­bon in the form of coke. There are four steps in diet coke’s manufacturing where chemical reactions take place. The product, H 2 CO 3, is on the right. Physical Reactions. The reaction of phosphoric acid with calcium contained in milk gives rise to a precipitate 3Ca + 2H3PO4 ///\\\ Ca3(PO4)2 + 3H2 It seems Coke and Mentos is a physical, not a chemical reaction, so we will save that for another day. Catalysts speed up reactions without being used up. That's why combustion of coke is harmful for the environment and also for living beings. I had three 1-litre bottles of Diet Coke and two sleeves of Mentos on hand for this reaction demonstration, which we did out on the library’s patio (warning: very messy). CONCLUSIONS The physical and chemical properties of some petroleum cokes produced in several different refineries have been examined. Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. All the carbon dioxide in the soda – all that fizz – is squeezed into the liquid and looking for a way out. The chemical makeup of citric acid is C6H8O7. Coke properties evaluated are: moisture, volatile carbon … Coke performs several functions in a blast furnace namely thermal, chemical and mechanical: a fuel providing the energy required for en-dothermic chemical reactions and for melting of iron and In the blast furnace stack, reduction is complicated by the presence of coke that causes the CO concentration to be influenced by the Boudouard reaction which is named after Octave Leopold Boudouard. Co2 is not a pollutant when present in the atmosphere up to a certain percentage. This work demonstrates the feasibility of using solid fuel (petroleum coke) in chemical-looping combustion (CLC). Reaction 1: Mentos & Diet Coke. Chemical Equation: 2 PbO + C à 2Pb + CO2 There is another process in which the galena mineral can be smelted through [4]. The mixture should start to fizz and bubble which is a clue to the fact that a chemical reaction is happening, but have the kids keep their eye on the thermometer. But when Co2 used in excess than it is harmful. Despite various chemical reactions and methods are available to remove coke, developing reliable, efficient, and economic regeneration methods for catalytic processes still remains a challenge in industrial practice. Metallurgical coke has an optical texture or microstructure composed of anisotropic carbon in the form of mosaics and flow-type anisotropy as well as isotropic carbon or inerts. What chemical reactions are going on inside a pop can? It first appeared on store shelves in 1982. The term solution loss is discussed and defined. Chemical reactions, Coke; Abstract. Examples are given showing that solution loss may either have a favorable or unfavorable effect on blast furnace performance. The chemical reaction between the Mentos and Diet Coke reduce the surface tension on the top of the water allowing the gas created through nucleation to waste less energy breaking the surface tension as it dispels the soda out the mouth of the bottle in what is observed as the fountain or geyser. Chemical reactions can be represented using equations. You can even drop Mentos into a Diet Coke for a geiser chemical reaction. Combustion of coke releases harmful gases such as carbon monoxide which is harmful not only for the environment but also for all the living beings. They can also touch the outside of the bowl to physically feel the temperature change. The first step in diet coke’s manufacturing where chemical reactions take place is in clarifying the water. As Maricv 84 explains on their YouTube page, the reaction is between the phosphoric acid in the Coke, and the proteins in two tablespoons of milk, which produces a precipitate.Here’s what it looks like: 3Ca + 2H3PO4 ///\\\ Ca3(PO4)2 + 3H2. After a lot of debate, scientists are now saying that the primary cause of Coke & Mentos geysers is a physical reaction, not a chemical reaction. Adam and Jamie explore the science behind the fabled Diet Coke and Mentos phenomenon. 1) Due to the sulfur content, carbon from the coke will not be able to reduce lead. The equation for the reaction that occurs when lead(II) oxide is heated with coke in a blast furnace is: {eq}\rm 2PbO + C \to 2Pb + CO_2 {/eq}. Although coke and burden are charged alternately, BF models usually treats them as a mixture and set chemical reactions occur non-selectively inside coke and ore layers. Comparing the reaction temperature when adding MgO between at 300 and 450 °C, the different pathway of reaction and the coke formation were found. Have the students showcase their devices and whoever shoots the projectile highest wins. When you drop mentos candies into a bottle of diet coke, you are not viewing a chemical reaction but a physical reaction. The method … IntroductionDiet Coke is a popular, calorie free soft drink.It is a modified version of the original Coca Cola. Interesting reaction coke and milk The reaction of phosphoric acid (V) to proteins in the milk - they are cut and causes a precipitate. Download MS PowerPoint Slide. A Diet Coke and Mentos Eruption (also known as a soda geyser) is a reaction between the carbonated beverage Diet Coke and Mentos mints that causes the beverage to expel from its container. Coke, limestone flux, and iron ore (iron oxide) are charged into the top of the furnace in a precise filling order which helps control gas flow and the chemical reactions inside the furnace. Atoms are rearranged during chemical reactions, and are not lost or gained. It also requires two chemical reactions to occur within the furnace. High Resolution Image. Here, the reaction between the oxygen carrier and solid fuel occurs via the gasification intermediates, primarily CO and H 2. Colin R. Ward, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 V.C.1 Coke Oven Processes. Such respective reacting burden layers have not been considered explicitly in the previous BF models. There are many different variations of Diet coke such as, caffeine free, lemon, lime, raspberry, black cherry vanilla, sweetened with Splenda, and Diet Coke plus. Examples of chemical reactions include Mentos and Diet Coke, baking soda and vinegar, and heating isopropyl alcohol in an enclosed bottle. After talking about reactions and answering any kiddo questions, we proceeded to the main event: four very exciting chemical reactions. The reaction of coke with steam to give water gas is an example of an endothermic reaction. coke, there is an increasing trend to replace coke by other fuels such as injecting pulverized coal through tuyeres in order to decrease reliance on coke. Their explanation is this process called nucleation. The process takes place in blast fur­naces at a tem­per­a­ture of 2,000 °C. When baking soda and vinegar combine, the bubbly reaction you witness is purely chemical. The ironmaking blast furnace (BF) is an efficient chemical reactor for producing liquid iron from solid iron ore, where the solids of coke and iron ore are charged in alternative layers and different chemical reactions occur in the two solid layers as they descend. Chemical reactions with household products are really fun! The chemical makeup of caffeine is C8H10N4O2. The anisotropic carbon is formed via the intermediates of nematic liquid crystals and mesophase. You can make rockets with water and Alka-Seltzers.You can create elephant's toothpaste with hydrogen peroxide, liquid dish soap, and dry yeast. 4. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle. Build a system that shoots some object (ie a cork, ping pong ball, bottle rocket) powered solely by a chemical reaction. A simple example of a chemical reaction would be the combination of baking soda and vinegar. A theory is advanced explaining the contradictions encountered during earlier studies of the problem. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. Well, the chemistry behind it is actually quite interesting: there is a reaction between the phosphoric acid in the Coke and the milk, especially the proteins in the milk. When CO 2 dissolves in H 2 O, water and gaseous carbon dioxide react to form a dilute solution of carbonic acid (H 2 CO 3). There are so many that you can do that are super fun. for different petroleum coke samples reported by other authors as well [18-19]. The chemical reaction for this process is: H 2 O + CO 2 ⇋ H 2 CO 3 Note that the reactants, H 2 O and CO 2, are on the left.