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Integrated operator of industrial gases and basic chemical raw materials

Professional production and operation of gases such as carbon monoxide and hydrogen, co production of methanol, olefins, butanol and octanol, and other products

Clean energy area

Integrated operator of industrial gases and basic chemical raw materials

Professional production and operation of gases such as carbon monoxide and hydrogen, co production of methanol, olefins, butanol and octanol, and other products

Clean energy area

Integrated operator of industrial gases and basic chemical raw materials

Professional production and operation of gases such as carbon monoxide and hydrogen, co production of methanol, olefins, butanol and octanol, and other products

Clean energy area

ABOUT US

Nanjing Chengzhi Clean Energy Co., Ltd.

Integrated operators of industrial gases and basic chemical raw materials in the field of clean energy in China

Nanjing Chengzhi Clean Energy Co., Ltd., established in September 2003, is located in Jiangbei New District, Nanjing City, Jiangsu Province, with a registered capital of RMB 3,685 million, and covering an area of 54 hectares, and its multiple production units are constructed in three phases. On November 23, 2016, Chengzhi Shareholding Co., Ltd. completed the further issuance and acquisition, becoming the sole shareholder of Nanjing Chengzhi Clean Energy Co., Ltd. Chengzhi Shareholding Co., Ltd. is a high-tech listed company controlled by Tsinghua University, and its main businesses include the life science and technology, new energy, medical services, pharmaceutical and chemical, liquid crystal materials, etc.

2003 Year

Established in 2003

37.97 billion

Registered capital 3.797 billion RMB

700 +

Existing Employee 700

54 hectare

Covering an area of about 54 hectares

Device Display

Specializing in the production and operation of carbon monoxide, hydrogen and other gases, co-production of methanol, olefins, butyl octanol and other products, products are mainly supplied to Nanjing Jiangbei New District and surrounding enterprises.

Methanol synthesis unit

Twosetsof300,000tmethanolunits, byEastChinaUniversityofScienceandTechnology,arealladopted,andthe3+1rectifyingtowers,designedbyTianchenInstitute,areusedforthemethanolrectification.

Coal storage and transportation unit

The dual-line coal transportation mode is used for the unit, specifically, coals are mainly transported by train (vehicle transportation as the auxiliary mode), and are then transferred by belts to six silos, each of which has a designed storage capacity of 9,000 t, and they are conveyed to each user through belts.

Circulating water unit

It consists of 4 sets of cooling towers, all of which are the open type. The cooling water is pressurized by the circulating water pump and is then sent to the heat exchanger at each production device for heat exchange. After that, the circulating water is sent to the top of the cooling tower through the residual pressure; through the heat exchange between the water and the gas pumped by the fan at the top of the tower, the cooled water flows into the pool and is then pressurized and sent out by the circulating water pump for cyclic use.

Power generation unit

Steam is generated during the operation of the power generation device, in addition to the part consumed by the system, there is a relatively large amount of residual steam, with a relatively low grade (saturation). Through the analysis and demonstration, the last two 12MW steam-supplementing and condensing turbines are used to fully utilize the waste heat of the residual steam, as a result, about 10 KV power (1.2 KWH/set) is generated per hour and is supplied to the 10 KV power grid of the unit, thus greatly reducing the external electricity, condensing all the steam into water and recycling it, and also reducing the noise pollution to the environment.

Water-coal slurry gasification unit

The unit, for which the GE technology is adopted, was put into operation in April 2007 and September 2009, supplying materials to 7 gasification furnaces, 5 for operation and 2 for standby, and consuming tons of coal per year, and the gas produced is sent to the low-temperature methanol washing unit after the conversion; the ash water is washed and recycled by the slag water treatment system, and the coarse slag is transported out by the contractor for treatment.

MTO unit

The methanol-to-olefin (MTO process for short) technology, developed by UOP, is adopted, and the supporting MTO-100 catalyst (SAPO-34) is used; Wison Engineering (China) Co., Ltd. is responsible for the detailed design and contract. The methanol is used as raw material for the unit, with a design treatment capacity of 750,000 t/year. The unit is mainly composed of the feed and product separation, reaction and regeneration, catalyst recovery systems, product compression and product concentration plants. featuring large scale, less personnel required, advanced technology, high integration degree and localization degree.