Sub- Dew Point Process

Introduction to the MCRC sub-dewpoint sulfur recovery process: The MCRC sub-dewpoint sulfur recovery process is a new sulfur recovery technology proposed by Canadian Mineral and Chemical Resources Corporation, which integrates sulfur recovery units with exhaust gas treatment units. This method operates the final stage or secondary converter at low temperatures, and it has certain advantages in terms of process flow and technical economics; as a result, it has received considerable attention since its introduction. Since the first set of such plants was built in 1979, 20 such plants have been put into operation to date. The main technical features of the MCRC method are: (1) it uses a process that is essentially identical to that of conventional Claus units, and all equipment can be designed and manufactured in accordance with the specifications for Claus units, with no special requirements. (2) Catalyst regeneration is an integral part of the entire process; there is no need to install a separate regeneration cycle system. Therefore, it can be flexibly controlled by adding only a few valves to the conventional Claus unit layout. (3) Easy to operate and simple to manage. The operating costs of this unit are comparable to those of a conventional Claus unit with the same number of converter stages; the investment cost is about 10% higher, while the sulfur recovery rate can be increased by 2–5%, reaching around 99%. Among them, modifying the existing three-stage Claus unit incurs the least additional cost, and the sulfur recovery rate can be increased by 2–5% ； Modifying the secondary Claus unit requires significant investment due to the need to add new converters, but the sulfur recovery rate can be increased by about 7%.

If the landlord wants to see more detailed information, please read the following two articles! http://www.sulfurchina.com/ViewInfo.asp?id=136 http://www.wanfangdata.com.cn/qikan/periodical.articles/trqysy/trqy99/trqy9902/990204.htm