遗传算法作为一种函数优化方法，不依赖于求解问题的本身，利用简单的编码技术和繁殖机制，快速有效地搜索复杂、高度非线性和多维空间，寻求最优解。动力配煤是一个多元优化问题，混煤与各组成单煤间的非线性关系增加了约束条件向确定性方程转化的难度。将遗传算法用于动力配煤方案优化，利用其全局性、并行性、快速性的特点，有效地解决了配煤中的非线性多约束问题，取得了理想的效果。

This paper focuses on sulfur removal technologies in industrial grate furnaces (IGF) and pulverized coal fired boilers (PCFB) with high flame temperature of 1200-1600℃. The SO2 reduction without sorbents during coal combustion, thermal stabilities of sulfation products, kinetics of sulfur retention reactions of sorbents, desulfurization processes, and sulfur removal under unconventional atmospheres at high temperature are reviewed. It is proposed that some powdered minerals or ndustrial wastes with effective metal components may be used as sorbents for sulfur removal to promote cost effectiveness. Because the main reason that results in low desulfurization efficiencies in IGF and PCFB is the thermal decomposition of the conventional sulfation product CaSO4 above 1200℃, it is key to explore new sulfation products that are thermally stable at high temperatures. It is also necessary to study the kinetic catalysis of alkali and transitional metal compounds on sulfation reactions under the combustion conditions of IGF and PCFB. The two-stage desulfurization process, in which SO2 is captured by sorbents both in the coal bed and the combustion gas, is promising for IGF, especially with the humidification of flue gas in a water-film dust catcher. The staged desulfurization process combined with air-staged combustion, in which sorbents are injected into the primary air field and upper furnace to capture SO2 under reducing and oxidizing atmospheres, is promising for PCFB. Flue gas recirculation is also an effective desulfurization process under O2/CO2 conditions and can give a high desulfurization efficiency of about 80% in furnaces.

利用管式电炉、X射线衍射仪、压汞仪和SEM扫描电镜研究了电石渣在1200℃高温下动态煅烧及烧结过程中的微观结构变化。发现电石渣主要由含量大于80%的Ca(OH)2以及少量CaCO3、α2SiO2和α2Fe2O3晶相组成，高温煅烧后其主要晶相变成CaO。在1200℃下煅烧及烧结过程中，随时间增加电石渣的平均孔径逐渐增大，比表面积逐渐减少，总孔容积先增大后减少。高温长时间烧结后，电石渣表面由许多膨胀变形的类哑铃形CaO晶粒结构组成，且大小均匀、排列有序、边界明显。

为了研究煤粉浓度在热壁无油点火中的影响规律，该文进行了详细的试验研究，揭示了煤粉气流在高温管壁 面加热情况下的着火过程和煤粉浓度对无油点火过程的影响。煤粉的着火过程分为3个阶段：初始的挥发分均相着火段、发展的焦炭多相着火段和最后的燃烧稳定段。煤粉浓度的升高导致了煤粉气流着火推迟，着火距离增加，系统出口温度降低，并促使系统出口烟气组成发生了显著的变化。文中得到的煤粉浓度对煤粉高温热壁面点火的影响规律，对于煤粉高温热壁面无油点火燃烧器的设计和运行提供了重要的理论依据。

文章指出了煤燃烧高温脱硫3方面难点；①石灰石分解速率低于煤燃烧时硫析出速率；②脱硫产物在CaSO 200以上再分解；③CaO颗粒高温严重烧结对此提出二段脱硫工艺，即一部分添加剂与煤预混进行料层脱硫，另一部分喷入炉内捕捉烟气中硫。建立了10t/h链条炉二段脱硫示范装置试验和运行结果表明锅炉除尘器前脱硫率达到70%以上，除尘器后，烟气经半干法处理可达到80%～90%。