give condition for coversion of gases into liquid
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In gas-to-liquids (GTL) transport processes, natural gas is converted to a heavier hydrocarbon liquid and transported to the consumers. The technology of converting natural gas to liquids is not new. In the first step, methane is mixed with steam and converted to syngas or synthetic gas (mixtures of carbon monoxide and hydrogen) by one of a number of routes using a suitable catalyst technology (Keshav and Basu, 2007). The syngas is then converted into a liquid using a Fischer-Tropsch (FT) process (in the presence of a catalyst) or an oxygenation method (mixing syngas with oxygen in the presence of a suitable catalyst). The produced liquid can be a liquid fuel, usually a clean burning motor fuel (syncrude), or lubricant, ammonia, methanol, LPG substitute, or some precursors for plastics manufacture, e.g., urea, dimethyl ether (DME), or chemical feedstocks (Knott, 1997; Skrebowski, 1998; and Apanel, 2005). The environmental benefits of clean burning GTL products have been demonstrated to have potential in improving air quality in cities over refinery transportation fuels. However, on a full cycle analysis GTL fuels do not significantly outperform refinery fuels because operation of GTL plants would incur substantial emissions. The problem is primarily with the low energy efficiency of syngas generation and the low carbon efficiencies of the conversion processes such as FT (O'Rear and Goede, 2007). Technology breakthroughs are required to improve capital cost and environmental benefits
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water vapour becomes gas to liquid