采用密度泛函(DFT)方法,在B3LYP/6-31G(d)水平上研究了煤中非噻吩型有机硫的热解机理。分别对苯硫醇、二甲基硫醚进行量子化学计算,通过对键的Mulliken重叠布居数等计算结果的分析,得到了这三类非噻吩型有机硫的热解途径。计算结果表明,C-S键是热解引发键,含硫部分则较易于与氢自由基结合,以H2S的形式逸出。

The main body of a book is on the basic of analyzing Shan City municipal sewage draining off current situation、water quality and the water yield characteristic,according to the designing philosophy of sewage treatment,through the stage aeration method following the comparison with average activity sludge method,it embodies the advantage of the stage aeration method,the main body of a book mainly introduces the principle and process flow of the stage aeration method,so it can provide one kind allowing providing alternative handicraft and corollary equipment of city sewage treatment and middle water reuse.

Facing the status that the measurement methods of pore structure are so single,industrial wastes and mineral raw materials are researched by the mercury penetration analytical method.Then specific surface area、porosity and pellet density are compared.The result is very important to research the sulphur tetention effect of kinds of desulfuration additives' pore structure and improve its desulfurization efficiency.