摘要
媒中硫的含量大都由煤层的沉积环境控制，并取决于成煤物质是否曾受过海水影响及其受海水影响的程度。煤中硫的含量对于煤的有效利用甚为重要。这主要是因为燃煤时有相当量的二氧化硫释放到大气中造成对环境有害的酸雨。因此，煤层中硫的分布和地质特征是评估煤的品质及解决有关环境问题的一个重要参数。洁净煤技术是为了有效解决能源需求并减少用煤对环境的影响而发展起来的。它包括煤燃烧前的洁净方法（物理、化学和微生物的煤洁净法）、烟气脱硫、吸附剂喷撒和各种媒燃烧技术（流化床、气化联合循环等）。
The abundance of sulfur in coal is largly controlled by sedimentary environmntsduring coal formation. It dePends on whether the parent materials of ed were ever influencedby seawter during the history of coal formation and the intensity 0f seawater influence. Thesulfur content in coal is important to effective coal utilization because coal comustion causes re-lease of a substantial amount of sulfur dioxide t0 the atmosphere and ensuing environmntallyhazardous acid rain. Therefore, the distribution of sulfur and its geol0gic characteristics are im-portant indicators in evaluating coal quality and in solving related environrnntal problerns. .Theclean ed technologies are deVl0Ped f0r effective utilization of coal naurces with a minimumimPact on the environmnt. Such technologies include precombustion techniques (physical,cheAncal, and microbial coal cleaning), flue gas desulfurization, sorbent injection, and variouscoal combustion techn0beies (fluidized-bed combusti0n, integrated gasificati0n comined cycle,etc. ).
出处
《地学前缘》
EI
CAS
CSCD
1999年第B05期23-27,共5页
Earth Science Frontiers
