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Feasibility study on China‘s mercury-free catalyst R&D. FECO/ MEP /China Oct ober, 2011. Dr Sun Yangzhao. Content. PVC industry development s and mercury management status in China Project background and progress Mercury pollution control policies Difficulties and challenges Next steps.
Dr Sun Yangzhao
Table 1: PVC Data for China 2009 (Source MIIT, 2010)
Carbide PVC production uses lots of mercury, but it remains necessary：
The industry has adopted the following measures to reduce mercury use and emissions:
Phase 1 - Overall Target：To reduce mercury use in Chinese PVC industry
Duration：From Jan. 2009 to Sep. 2009
Activities and results：
Phase 2 Overall Target - To promote mercury free catalyst development and use in VCM production.
Implementation duration：April 2011-December 2011
By adoption of low Hg catalyst, mercury removal and centralized treatment of waste, producers are able to meet the national emission limit requirements.
2007 – Industry restructuring directory list (2007) specifies HgCl2 catalyst under restricted category.
Chloralkali Industry (carbide PVC)
Clean Production Auditing Standard
Hg and Hg compound bearing waste or polluted waste are already listed into State Hazardous Waste List
(1）Legislation and Enforcement
As a developing country, China is facing huge shortage of labor-power, material and financial power.
Phase1 (Jan 2010~Jan 2012)
Activity 1：Raise understanding of mercury pollution risks amongst local environmental protection bodies and industry.
Activity 2：Develop emission inventory.
Activity 3：Study the evaluation and application standards of low-mercury and non-mercury catalyst.
Activity 4：Set up reduction plan and targets across PVC industry.
Phase 2（Jan. 2012~Dec.2013
Activity 5: Research mercury alternative technology and pilot application, apply mercury reduction measures and standardize administration.
Activity 6: Initiate assessment and operation guidance for above.
Although the Chinese central government has paid a lot of attention to mercury pollution prevention and control in the VCM sector, it is still facing a lot of difficulties and uncertainties with spreading information on the low-mercury catalyst and the researching & development of free-mercury catalyst.
We hope for more support, including finance and technologies from developed countries!