Development of a continuous Ohmic heating to enable low cost & efficient drying of the low rank coals

目前，煤炭发电占全球电力的41%，预计到2050年将降至34%。然而，不断增长的电力需求仍然需要建造超过2440个新的燃煤电厂，煤炭使用量从目前的80亿吨增加到150亿吨（国际能源署和全球煤炭）随着全球煤炭需求的增加，高阶煤（HRC）的可用性正在下降；由于高内部和外部水分含量（约50%）导致运输成本增加，运输过程中的反应性，单位产量的燃料消耗增加以及燃烧效率低下导致二氧化碳，SOx和NOx排放增加，能源发电机被迫使用elrc，这是一个问题。到2030年，燃烧LRC而不是HRC将使煤炭相关排放量增加约80亿吨。此外，LRC的使用对电厂效率和使用寿命的影响越来越大。由于HRC的可用性非常有限，因此需要一种干燥技术，可以减少LRC的水分含量，使其在质量上与HRC相当。我们，Coomtech Ltd，正在开发一种两阶段（内部除湿- IMR和表面除湿- SMR） LRC干燥技术“CoomCoal”，具有全球英国出口市场机会，可将LRC的水分含量降低70%，CV增加60%，每吨LRC燃烧可减少高达15%的二氧化碳排放量。其他优点包括低运营成本和资本支出，降低储存和运输过程中的自燃，提高运输经济性，降低处理后的水分再吸收。我们已经通过内部PoC验证了CoomCoal，并通过该项目旨在开发2t/hr IMR原型装置。

Coal generation provides 41% of electricity globally now & is forecast to drop to 34% by 2050. However, the ever increasing demand for electricity still demands over 2440 new coal plants to be build & a rise in coal usage from the current 8b tons to 15b tons (IEA & Global Coal) As global demand for coal is rising, availability of high rank coal(HRC) is declining; energy generators are forced to useLRC which are problematic due to high internal & external moisture contents (>50%) causing increased transportation costs, reactivity during transportation, higher fuel consumption per unit of output & inefficient burning causing increased CO2, SOx & NOx emissions. Buring LRC instead of HRC will increase the coal related emissions by ~8 b tons by 2030. Moreover LRC use has a deteriorating affect on the plant efficiency & life in service. With a very limited availibility of HRC, there is a need of a drying technology which can reduce the moisture contents of the LRC to make it comparable in quality to HRC. We, Coomtech Ltd, are developing a 2 stage (Internal Moisture Removal- IMR & Surface Moisture Removal- SMR) LRC drying technology “CoomCoal” with a global UK export market opportunity to decrease the LRC moisture contents by 70%, increase its CV by 60% & reduce CO2 emissions by up to 15% per ton of LRC burnt. Other benefits include low OPEX & CAPEX, lowering spontaneous combustion during storage & transportation, improved haulage economics, & low post treatment moisture re-absorption.We have already proven CoomCoal through an internal PoC & through this project aim to develop 2t/hr IMR prototype unit.