【摘要】 Ｐｔ－Ｓｎ催化剂经（ＮＨ４）２Ｓ硫化用于长链烷烃脱氢，实验室研究结果表明用（ＮＨ４）２Ｓ硫化不但可以提高催化剂的稳定性，而且也提高初活性。经工业规模实际考核，表明这种新的硫化方法其催化剂稳定性好、选择性高、工业使用方便。同时还测定硫化催化剂的氢吸附及ＣＯ吸附态的红外光谱，结果表明（ＮＨ４）２Ｓ硫化催化剂其高温氢吸附量增加。作者将实验结果与传统Ｈ２Ｓ硫化方法作了对比讨论，对（ＮＨ４）２Ｓ硫化的机理提出了新的看法。更多还原

【Abstract】 The Pt-Sn catalyst sulfurized by (NH 4) 2S can be used for catalytic dehydrogenation of paraffin. The results of laboratory researches showed that the sulfurization could enhance the stability and initial activity of catalysts. The practical examination in industrial scales demonstrated that the new sulfurization method has been characterized by excellent stability and selectivity of catalysts. It is convenient to use this catalyst for industry. Besides, the infrared spectra of carbon monoxide adsorption was determined and hydrogen adsorption of catalysts sulfurised by (NH 4) 2S had increased at high temperature. By comparison of above experimental results to those of the traditional H 2S sulfurization method, the author presented a new opinion about the mechanism of (NH 4) 2S sulfurization.更多还原