Gautam Adani's MOU for a massive Rs 25,000 crore investment in a coal to poly-generation plant in Chhattisgarh
8The complex will produce power but also syn gas that is going to be used to produce urea.
8A polygeneration plant, as its name implies, is one that simultaneously produces two or more marketable products.
8In Adani's case, electric power will be one of the products. Importantly, most of the process steps in a polygeneration plant involve commercially proven technologies. The advantage is that these technology modules can be interconnected in different configurations to produce the required products.
8How does the technology work? Coal is first gasified to produce synthesis gas (syngas, consisting primarily of hydrogen and carbon monoxide), which is subsequently cooled and cleaned. A portion of the syngas can be used directly in the gas turbines of an integrated gasification combined cycle (IGCC) power plant (if CO2 capture is not required) to generate electricity. The rest passes through a shift reactor to adjust the molar H2:CO ratio to the required value. The cleaned and shifted syngas is then utilised to produce the desired products (electric power, H2, liquid fuels and chemicals, icnluding urea).
8In addition, a number of by-products, such as sulphur or sulphuric acid, can be generated for sale.
Comment: Clearly this is a new concept in India. The technology is still to be tested on high ash content coal in India and coal availability will always be an issue for all coal gasification projects. But if a project of this kind has to be successful then it requires a well connected industrialist like Adani to push it to fruition. Coal gasification is the only way most of the urea is made in China but the cost economics of such a technology is still to be worked out in India. A polygeneration plant goes a step ahead of coal gasification, so all that the urea industry in India can do is to wait and watch which way the wind blows.
For more details visit indianpetroplus.com
8The complex will produce power but also syn gas that is going to be used to produce urea.
8A polygeneration plant, as its name implies, is one that simultaneously produces two or more marketable products.
8In Adani's case, electric power will be one of the products. Importantly, most of the process steps in a polygeneration plant involve commercially proven technologies. The advantage is that these technology modules can be interconnected in different configurations to produce the required products.
8How does the technology work? Coal is first gasified to produce synthesis gas (syngas, consisting primarily of hydrogen and carbon monoxide), which is subsequently cooled and cleaned. A portion of the syngas can be used directly in the gas turbines of an integrated gasification combined cycle (IGCC) power plant (if CO2 capture is not required) to generate electricity. The rest passes through a shift reactor to adjust the molar H2:CO ratio to the required value. The cleaned and shifted syngas is then utilised to produce the desired products (electric power, H2, liquid fuels and chemicals, icnluding urea).
8In addition, a number of by-products, such as sulphur or sulphuric acid, can be generated for sale.
Comment: Clearly this is a new concept in India. The technology is still to be tested on high ash content coal in India and coal availability will always be an issue for all coal gasification projects. But if a project of this kind has to be successful then it requires a well connected industrialist like Adani to push it to fruition. Coal gasification is the only way most of the urea is made in China but the cost economics of such a technology is still to be worked out in India. A polygeneration plant goes a step ahead of coal gasification, so all that the urea industry in India can do is to wait and watch which way the wind blows.
For more details visit indianpetroplus.com
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