Abstract: Coal gasification is the key technology for clean and high-efficiency coal utilization. It also is the basis of process industry for coal-based chemicals synthesis（such as ammonia，methanol，acetic acid，olefin etc.），advanced Intergrated Gasification Combined Cycle（IGCC）system，poly-cogeneration，hydrogen production，fuel cell and direct-reduction iron making. It is very important to research and develop large-scale coal gasification technology. In this paper，the status of the development of over-sea large-scale coal gasification technology is summarized. And that of research and commercialization of large-scale coal gasification in China is also been introduced. The development trend of and technical approach to commercialization of coal gasification are analyzed.

摘要： 煤气化技术是煤炭清洁高效转化的核心技术，是发展煤基化学品合成（氨、甲醇、乙酸、烯烃等）、液体燃料合成（二甲醚、汽油、柴油等）、先进的IGCC发电系统、多联产系统、制氢、燃料电池、直接还原炼铁等过程工业的基础，研究和开发大型煤气化具有重要意义。本文概述了国外大型煤气化技术发展的主要情况，介绍了国内大型煤气化技术研究开发的现状和产业化情况，分析了煤气化技术大型化的主要趋势与应该采取的技术途径。