__________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 2) List down three main stages in conversion of kerogen into hydrocarbon. [3 marks] i. _________________________________ ii. _________________________________ iii _________________________________ 3) Substances present in petroleum fall into four major groups. List down two of them and give one example of each
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liquefy or condense is taken out from top of the fractionating column. All other fractions are removed from their respective out lets. Note : Each fraction obtained during the fractional distillation is not a single hydrocarbon but is a mixture of number of hydrocarbons. These hydrocarbons differ in number of carbon atoms present in their
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BIOREMEDIATION INTRODUCTION:- The process of bioremediation was reportedly devised by George M Robinson in the 1960 during experimentation with dirty jars and the introduction of microbes this was however not applied until the 1972 clean out of the fuel holding tanks on the RMS queen mary. Science 1972 bioremediation has become greater developed as a means of cleaning up spills of gasoline diesel ‚ heavy metals and other easily degraded petroleum products (National Research Council 1993). Bioremediation
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industrial society is based on a triad of hydrocarbons‚ metals‚ and electricity. The three are intricately connected; each is accessible only if the other two are present. Electricity‚ for example‚ can be generated on a global scale only with hydrocarbons. The same dependence on hydrocarbons is true of metals; in fact the better types of ore are now becoming depleted‚ while those that remain can be processed only with modern machinery and require more hydrocarbons for smelting. In turn‚ without metals
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Anissa Davis 32130161 The Industrial Process of Sulphuric Acid6 The contact process: At the heart of this process is a reversible reaction in which sulphur dioxide is converted to sulphur trioxide‚ but first you have to produce sulphur dioxide. Stage 1: Making sulphur dioxide Either burn sulphur in air: S (s) + O₂ →SO₂(g) Or heat sulphide ores strongly in air: 4F eS₂(s) + 11O2(g)→2F e₂O₃(s) + 8SO₂(g) Stage 2: Making sulphur trioxide Now the sulphur dioxide is converted into sulphur trioxide using an excess of air
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Biomagnification speech DESRIPTION OF THE ISSUE Biomagnification is the accumulation of substances‚ especially many chlorinated hydrocarbons that are used as pesticides. Common chlorinated hydrocarbons include DDT‚ dieldrin‚ and PCBs. These chemicals are insoluble in water‚ but highly soluble in organic solvents like animal fats and plant oils. Due to their insolubility‚ they are persistent in the environment and cannot be broken down by any natural processes. HISTORY OF THE PROBLEM DDT was first
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chloromethane‚ dichloromethane‚ trichloromethane and tetrachloromethane. What is cracking? Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst‚ or lower temperatures and pressures in the presence of a catalyst. The source of the large hydrocarbon molecules is often the naphtha fraction or the gas oil fraction from the fractional distillation of crude oil (petroleum). These fractions
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many other purposes. These petroleum products get into water mainly by means of accidental spills from ships‚ tanker trucks‚ pipelines‚ and leaky underground storage tanks Petroleum products affect surface water‚ impairing water quality with hydrocarbons‚ salts‚ nutrients‚ a host of organic compounds‚ and various heavy metals. Immediately after a spill‚ Oil slicks on the surface water producing a thick mousse. A large portion of the oil also forms emulsions or dissolves in the water. Some heavy
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Air Pollution in Hong Kong Chemistry Project the Written Report 1.Introduction 3 2.Sources of Air Pollution 3 - 7 1.Vehicles 4 - 5 1. Pollutants produced by vehicles 4 2. Reasons why pollutants are produced 4 3. Impacts of the pollutants from vehicles 4 - 5 4. Method to eliminate pollutants 5 2.Power Stations 6 - 7 1. Pollutants produced by power stations 6 2. Reasons why pollutants are produced 6 3. Impacts of the pollutants from power stations 6 4. Methods to eliminate
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temperatures‚ so their macromolecular structures are broken down into smaller molecules and a wide range of hydrocarbons are formed. These pyrolytic products can be divided into a gas fraction‚ a liquid fraction consisting of paraffins‚ olefins‚ naphthenes and aromatics‚ and solid residues. Pyrolysis appears to be a technique that is able to convert waste plastics into gasoline-range hydrocarbons [1]. There are four major methods for conversion of organic wastes to synthetic fuels: (1) hydrogenation
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