一、前言现在国外大多数工厂都采用碳化钙作为脱硫剂。它的优点是脱硫能力非常强,脱硫速度快,效果稳定,而且对耐火砖衬的侵蚀也很少。缺点是生产碳化钙的电耗量大,成本高,而且在运输和贮存时必须注意密封,受潮后容易发生爆炸以及对环境污染严重等问题。因此,近来正在积极研究以石灰粉为主的复合脱硫剂来代替碳化钙。这样就能节省能源,降低脱硫成本,减少运输和贮存的 I. Introduction Nowadays, most factories in China use calcium carbide as desulfurizer. Its advantage is very strong desulfurization capacity, desulfurization speed, the effect is stable, but also the erosion of refractory bricks is also very small. The disadvantage is that the production of calcium carbide power consumption, high cost, but also in the transport and storage must pay attention to sealing, damp prone to explosion and serious environmental pollution problems. Therefore, recently, a compound limestone-based composite desulfurizer has been actively researched to replace calcium carbide. This saves energy, reduces the cost of desulphurization, and reduces shipping and storage