Unit name: Shandong Tianmai Chemical Co., Ltd.
Business Type: Limited Liability Company
Legal representative: Zheng Chunsheng
Shandong Tianmai Chemical Co., Ltd. was established in August 2003, located at No. 18, Weiliu Road, Qilu Chemical Industrial Park, Linzi City, Zibo City. Our company is mainly engaged in the production and operation of bisphenol-A epoxy resin and polyester resin.
1. Pollutant discharge
Our company has complete environmental protection procedures, and pollutant discharge is strictly in accordance with the requirements of the relevant indicators of the superior department. The detailed information on pollutants is shown in the following table:
| Category | Source | Pollutant name | Emission method |
Total emissions（t/a） |
Exceeding the standard and exceeding the total amount | |
| Exhaust gas | Organised emissions | Polyester resin esterification, polycondensation and other processes | Ethylene glycol | After collection, it is discharged from a 15m high exhaust pipe after condensation, lye spraying, secondary water spraying, defogging, UV photolysis, and activated carbon adsorption. |
0.088 |
none |
| Diethylene glycol |
0.038 |
none | ||||
| Neopentyl glycol |
0.025 |
none | ||||
| Epoxy resin absorbs alkali water and other processes | Epichlorohydrin |
0.039 |
none | |||
| Grinding (slicing) process | Dust | After being treated by a bag filter, it is discharged from a 15m high exhaust pipe |
0.720 |
none | ||
| Heat transfer oil gas boiler |
Sulfur dioxide |
Using natural gas clean energy, the generated exhaust gas is discharged from the 15m high exhaust pipe |
0.30 |
none | ||
| Nitrogen oxides | Install low NOx burners, the nitrogen oxides produced are emitted by the 15m high exhaust pipe |
2.64 |
none | |||
| Soot | Discharged by 15m high exhaust pipe |
0.18 |
none | |||
| Fugitive emissions | Device area | Epichlorohydrin |
/ |
0.396 |
none | |
| Diethylene glycol |
/ |
0.083 |
none | |||
|
Ethylene glycol |
/ |
0.045 |
none | |||
| Neopentyl glycol |
/ |
0.050 |
none | |||
| Waste water | Production and living | Waste water | After passing the pretreatment of the company's sewage treatment station, it will be discharged from the above-ground pipeline to the downstream sewage treatment plant |
26011 |
none | |
|
COD |
0.7805 |
none | ||||
| Ammonia nitrogen |
0.0779 |
none | ||||
| Solid Waste | Domestic waste | Office and living area | Domestic waste | Collected and processed by the sanitation department |
7.5 |
none |
| Production workshop | Packing | The packaging is recycled by the manufacturer. |
4.6 |
none | ||
| Hazardous Waste | Wastewater treatment | Treatment station sludge | It will be handed over to a qualified hazardous waste disposal company for centralized treatment. |
5.3 |
none | |
| Waste gas treatment | Waste activated carbon |
1.6 |
none | |||
| Heat transfer oil furnace | Waste heat transfer oil |
0.6 |
none
|
|||
2. Energy consumption
The main energy consumption types of our company are as follows:
1. Water consumption
The construction of this project is located in Qilu Chemical Industrial Park, Linzi District. The water supply pipe network of the park mainly includes the two major water supply companies in Linzi District, Tianrun and Tianqiyuan Company. The water supply of this project will rely on the water supply pipe network of Tianqiyuan Company, and the water supply capacity can meet the needs of the project.
①Water usage of the project:
The water used in the project includes production water supply, domestic water supply, and circulating water supplementary water, with an annual consumption of 5,700 tons and a water supply pressure of 0.5MPa. Steam condensate as part of company water.
②The unit product water consumption index of the main products:
5700t/a, equivalent to 0.38 ton/ton product (total product)
2. Power supply
The power consumption of our company's factory area is divided into two lines, namely, the power supply station of Qilu Chemical Industry Zone (10KV) of the Linzi Branch Center of the State Grid Zibo Power Supply Company and the power grid of Qilu Petrochemical Company (6KV). After the voltage reaches 380/220V, the buried cable is sent to the power distribution room of the project workshop for use by each user point.
The electricity load of the production equipment of the project:
2800000kWh/a, power consumption per unit product is 186kWh/a
3. Natural gas consumption
① Natural gas consumption
The natural gas of this project mainly provides combustion energy for the heat transfer oil furnace, and the heat transfer oil furnace provides heat energy for the production process of the production device. The natural gas for this project comes from Sincerity Gas Company, and the gas supply capacity can meet the needs of the project. The natural gas consumption is as follows:
55.55N m²/h, about 400,000 N m²/a, the unit consumption per ton of product is about 26.66N m²/a t
4. The amount of steam used
The steam of this project adopts the medium and low pressure steam supplied by the park. The steam of the project comes from the steam pipeline network of the chemical park, and the main steam supply methods are Qilu Petrochemical Power Workshop and Dawu Thermal Power Plant. Specifications are the pressure of 0.6MPa, the temperature of 160 ℃ saturated steam. The amount of steam used is as follows:
1.52m²/h, about 10940t/a; about 0.73t steam/t product.
The comprehensive energy consumption of the device is shown in the following table:
| Serial number | Energy consumption projects | Energy consumption unit | Annual consumption | Conversion factor | Converted energy consumption (t standard coal) |
|
1 |
Steam |
t |
10940 |
0.1286kgce/kg |
1406.88 |
|
2 |
Fresh water |
t |
5700 |
0.0857 kgce/t |
0.488 |
|
3 |
Electricity |
Kw*h |
2800000 |
0.1229 kgce/（kW·h） |
344.12 |
|
4 |
Natural gas |
Nm³ |
400000 |
1.5714 kgce/kg |
452.56 |
|
|
|
|
|
Total |
2204.5 |
Note: The standard density of natural gas is about 0.72Kg/m².
The unit comprehensive energy consumption of the device:
The total production capacity of the device is 15,000 tons of comprehensive products, and the annual standard comprehensive energy consumption of the device is 2204.5tce/a.
The comprehensive energy consumption per unit product of the device: 2204.5tce÷15000t=0.147tce/t (product).
There is no situation that exceeds the energy consumption limit standard of unit product.
Use, production and disposal of toxic and harmful raw materials:
The raw materials used by our company are epichlorohydrin, liquid caustic soda, bisphenol A, neopentyl glycol, trimethylolpropane, ethylene glycol, diethylene glycol, purified terephthalic acid, triphenyl phosphite, Trimellitic anhydride, catalyst, curing accelerator, etc. Among them, epichlorohydrin belongs to category 6.1 toxic substances (not highly toxic chemicals), with an annual consumption of 4,000 tons. The fugitive emission is 0.039t/a.
In the production process of our company, some solid wastes will be generated directly and indirectly, among which the sewage treatment station sludge (5.3t/a), waste activated carbon (1.6t/a) and waste heat transfer oil (0.6t/a) belong to the category of hazardous waste. The production and transfer of hazardous wastes in our company are all registered and filed, and the hazardous wastes will be handed over to a qualified hazardous waste disposal company for disposal after the Environmental Protection Bureau applies for the transfer of hazardous wastes.
Our company implements environmental risk prevention and control in accordance with the instructions and requirements of superior documents, regularly conducts environmental protection knowledge training for employees, formulates emergency plans for environmental emergencies, and regularly organizes emergency drills for environmental emergencies.
