Through improving the traditional ammonia-route desulfurization process,a novel environmentally friendly ammonia-route desulfurization process with zero emission,ecological friendliness,economy and feasibility is successfully designed.The key of this process is to arrange the desulfurization process between the desulfurization tower and the pre-desulfurization tower,which simplifies the desulfurization process and improves the desulfurization efficiency(91.5％).Meanwhile,the by-product nano-powder zinc sulfide has uniform particle size and high purity,and its economic value is better than sulfur and sulfur paste by-products generated by the traditional ammonia desulfurization process.The novel process provides a new idea for green production,safe production and economic production of coal coking plant.
desulfurization wastewatersulfurexhaust gas emissionzero emissionZnS
维普
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