烟气脱硫石膏是燃煤电厂烟气脱硫后产生的固态残渣,其年产量大且综合利用率低。文章着重介绍脱硫石膏在污水处理、二氧化碳的固定、制备硫酸钙晶须以及土壤改良的研究现状,并阐述在环境治理中的不足,以拓宽脱硫石膏的应用领域,提高利用...烟气脱硫石膏是燃煤电厂烟气脱硫后产生的固态残渣,其年产量大且综合利用率低。文章着重介绍脱硫石膏在污水处理、二氧化碳的固定、制备硫酸钙晶须以及土壤改良的研究现状,并阐述在环境治理中的不足,以拓宽脱硫石膏的应用领域,提高利用率,实现较高的社会效益、经济效益和环境效益。Flue gas desulfurization gypsum (FGDG) is a solid residue produced after flue gas desulphurisation in coal-fired power plants, with a large annual output and low comprehensive utilization rate. This paper highlights the current research status of FGDG in wastewater treatment, carbon dioxide fixation, preparation of calcium sulfate whiskers, and soil improvement, and elaborates on the deficiencies in environmental management, in order to broaden the application fields of FGDG, improve the utilization rate, and realize higher social, economic and environmental benefits.展开更多
为探究HCl对费托合成钴基催化剂的中毒机制,采用HSC Chemistry 5.0软件对200℃~350℃范围内钴基催化剂HCl中毒热力学进行模拟计算。结果表明:钴基催化剂与HCl单独存在或与CO共存会引起中毒,其中毒产物以CoCl2为主;费托合成钴基催化剂中,...为探究HCl对费托合成钴基催化剂的中毒机制,采用HSC Chemistry 5.0软件对200℃~350℃范围内钴基催化剂HCl中毒热力学进行模拟计算。结果表明:钴基催化剂与HCl单独存在或与CO共存会引起中毒,其中毒产物以CoCl2为主;费托合成钴基催化剂中,HCl不会对载体SiO2产生影响。In order to investigate the poisoning mechanism of HCl on cobalt-based catalysts for Fischer-Tropsch synthesis, the thermodynamics of HCl poisoning of cobalt-based catalysts in the temperature range of 200˚C~350˚C was simulated by using HSC Chemistry 5.0 software. The results showed that coexistence of cobalt-based catalysts with HCl alone or with CO would be poisoned, and its toxic product was dominated by CoCl2;HCl would not affect SiO2 in Fischer-Tropsch synthesised cobalt-based catalysts.展开更多
文摘烟气脱硫石膏是燃煤电厂烟气脱硫后产生的固态残渣,其年产量大且综合利用率低。文章着重介绍脱硫石膏在污水处理、二氧化碳的固定、制备硫酸钙晶须以及土壤改良的研究现状,并阐述在环境治理中的不足,以拓宽脱硫石膏的应用领域,提高利用率,实现较高的社会效益、经济效益和环境效益。Flue gas desulfurization gypsum (FGDG) is a solid residue produced after flue gas desulphurisation in coal-fired power plants, with a large annual output and low comprehensive utilization rate. This paper highlights the current research status of FGDG in wastewater treatment, carbon dioxide fixation, preparation of calcium sulfate whiskers, and soil improvement, and elaborates on the deficiencies in environmental management, in order to broaden the application fields of FGDG, improve the utilization rate, and realize higher social, economic and environmental benefits.
文摘为探究HCl对费托合成钴基催化剂的中毒机制,采用HSC Chemistry 5.0软件对200℃~350℃范围内钴基催化剂HCl中毒热力学进行模拟计算。结果表明:钴基催化剂与HCl单独存在或与CO共存会引起中毒,其中毒产物以CoCl2为主;费托合成钴基催化剂中,HCl不会对载体SiO2产生影响。In order to investigate the poisoning mechanism of HCl on cobalt-based catalysts for Fischer-Tropsch synthesis, the thermodynamics of HCl poisoning of cobalt-based catalysts in the temperature range of 200˚C~350˚C was simulated by using HSC Chemistry 5.0 software. The results showed that coexistence of cobalt-based catalysts with HCl alone or with CO would be poisoned, and its toxic product was dominated by CoCl2;HCl would not affect SiO2 in Fischer-Tropsch synthesised cobalt-based catalysts.
