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Our company started pyrolysis since the year of 1987. The original company based in Beijing,China,its first name is:Beijing Dingsheng Zhonghe Technology Co.,LTD (北京鼎盛中和) which is an enterprise for technology invention and sales in pyrolysis field. 

In the year of 1993,the first technology achievement of waste plastic in China was invented by our engineer director Mr Li Yi.

In the year of 1995,Beijing company established.

In the year of 2000,the first batch pyrolysis plant invented and used in waste tyre.

In the year of 2005,the first continuous pyroysis plant invented.

In the year of 2010,the first international order from Ireland (continuous pyrolysis plant).

In the year of 2013,Benjing company moved to Hunan Province and Hunan Benji company established,which is a comprohensive enterprise of invention as well as manufacture and sales.

In the year of 2015,the first vehiclular pyrolysis plant invented and used in oilfield sludge treatment.

In the year of 2017,rewarded the honor of "New High-tech Enterprise"

In the year of 2018,rewarded the honor of"National Intellectual Property Enterprise"

In the year of 2017,the first 50tpd continuous tyre pyrolysis plant run in Jiangxin Province,China.

In the year of 2019,rewarded of the honor of "Advanced Enterprise in Energy Saving and Emission Reduction "by China Tyre Recycling Association"


Projects Completed


Staff members


Million Man-hours


National patents

Enterprise Honor

Patent of continuous pyrolysis

Patent of continuous pyrolysis

A kind of fast pyrolysis plant for electric waste and waste tyre or plastic with combanation of reactor and tube.

Patent Continuous Pyrolysis

Patent Continuous Pyrolysis

A kind of multi-functional Rotary environmental protection technology and plant for continuous pyrolysis,distill and burn through.