论文部分内容阅读
中国是世界最大产氨国,年需各类制氨催化剂约2万t,预计2010年需要量也仅2.7万t,现有装置能力已能满足。规模及原料的多样性使我国万吨氨的催化剂单耗高于国外平均值,但大型氨厂催化剂的使用已达国际先进水平。目前,我国制氨催化剂工业规模小而分散,厂家缺乏技术开发能力,一些品种尚存在堆密度偏高的问题,产品质量有待进一步改进。
China is the world’s largest producer of ammonia. It needs annual production of about 20,000 tons of various ammonia-producing catalysts. It is estimated that the demand in 2010 will be only 27,000 tons, and the existing installation capacity can already meet. The scale and raw material diversity have made the catalyst consumption per million tons of ammonia in China higher than the foreign average, but the use of large-scale ammonia plant catalysts has reached the international advanced level. At present, the industrial scale of ammonia production in China is small and scattered. The manufacturers lack the ability to develop technologies. Some varieties still have the problem of high bulk density, and the quality of products needs further improvement.