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

燃煤发电目前占全球发电量的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设超过2440座新的燃煤电厂，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)，因为全球对煤炭的需求正在上升，高煤级煤(HRC)的可用性正在下降；能源生产商被迫使用LRC，这是由于高内外水分含量(&gt；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更高，以及低效燃烧导致二氧化碳、SOx和NOx排放增加。到2030年，燃烧LRC而不是HRC将使与煤炭相关的排放量增加约80亿吨。此外，LRC的使用对工厂的效率和使用寿命有恶化的影响。由于HRC的可获得性非常有限，因此需要一种干燥技术来降低LRC的水分含量，使其质量与HRC相当。我们，Coomtech Ltd，正在开发两个阶段(内部水分去除-IMR和表面水分去除-SMR)LRC干燥技术“CoomCoal”，在全球英国出口市场机会将LRC水分含量降低70%，增加其CV60%，并减少高达15%的二氧化碳排放每吨LRC燃烧。其他好处包括降低运营成本和资本支出，降低储存和运输过程中的自燃，改善运输经济性，以及低后处理水分再吸收率。我们已经通过内部PoC证明了CoomCoal&通过这个项目，目标是开发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.