Environmental Protection

This section concerns three main parts: solid waste, water, and air pollutants, mainly uses Niunin own technology and equipment. The business solutions list at the right.

From the perspective of fossil energy fuel, combustion process, and the whole process of combustion treatment, Niunin is proficient in fossil fuel energy conversion devices in electric power, metallurgy, chemical industry, building materials and other industries, so as to realize the accurate control of the entire process chain. We can achieve the following air pollutant emission targets.

Accordingly, Niunin Tech owns the leading level air pollutant emission control indicators in China.

Air Pollutants

Desulphur-ization

WCFB® Fluidized bed semi dry desulfurization and dust removal
Limestone / gypsum wet desulfurization
Double alkali desulfurization and dust removal
Soda ash Desulfurization and dust removal (SDS)

Denitration (De-NOx)

Low nitrogen combustor
Staged combustion OFA/BOFA
Selective catalytic reduction denitration (SCR)
Selective non-catalytic reduction denitration (SNCR)
Urea direct injection denitration (XSNCR)
Advanced oxidation denitration

Dust Removal

Electrostatic precipitation
Bag Dusting Technique
Ceramic filter
Sintered metal-mesh filter

Solid Waste

Sludge Sludge drying and incineration
Hazardous Waste Hazardous waste incineration
- Rotary kiln
Water Industrial Sewage Membrane filtration (MBR)
Process Water Alloy scale prevention (PTH)

Pollutant

Standard

NOx
mg/Nm3
SO2
mg/Nm3
Ash
mg/Nm3
Mercury
compounds

ug/Nm3
Ringelmann
Blackness
Lead
ug/Nm3
Selenium
ug/Nm3
SO3
mg/Nm3
Waste
water
Dioxin
Purification standard
- coke oven
150 30 15
National emission limits GB13223 100 50 20 30 1 - - -
Industrial boiler purification 150 50 20
Sinter machine purification 100 50 20 0.5
Gas turbine GB13223
(50355 standard)
50 30 5 - 1 - - -
Standard in United States
(Related laws: MATS, ELG)
- 150 13.5 0.45 1 4.5 7.5 Under discussion
- strict regulations
Niunin WCFB® (10105) <10 <10 <5 <3 <1 <3 <5 <5 0 <0.1

Energy Saving Section

In the main business of Niunin Tech, energy saving section is mainly the efficient utilization of fossil fuel heat energy, which involves heat recovery after combustion, improving combustion and heat exchange efficiency, reducing energy consumption in flue gas treatment process.

Energy saving

Heat recycles Heat recovery steam generator (HRSG)
Ultra-low temperature heat exchanger
Exhaust heat recovery system
Highly efficient combustion
Descaling and anti-scaling
Industrial furnace High temperature air combustion (HTAC)
Energy saving process optimization and energy consumption reduction

Energy and Power Section

The "energy and power sector" of Niunin Tech main business is to provide economic energy power system for the majority of energy utilization enterprises. The business involves EPC general contracting, BOT, EMCA contract, energy management, etc.

With the leading energy technologies of Niunin Tech, we offer the following energy product.

Energy power

Thermal power generation (Small and med-sized) CFB boiler
Coal water slurry steam Island
Pulverized coal boiler
Chain grates boiler
Gas generator Fluidized bed gas generator
Pyrolysis,
Gasification,
Incineration
Biomass coupling
Pyrolysis and gasification of refuse
waste incineration
Sludge drying and incineration
Orc electricity generation Air vortex electric rotation technique

Technical support section

The section in the main business of Niunin Tech refers to the provision of technical services such as feasibility study, preliminary design, detailed design / construction drawing design, commissioning, diagnosis, and other technical services by using the rich engineering design and management experience of Niunin Tech. The specialty involves: process, general drawing, general layout, pipeline, smoke and air duct, thermal insulation, refractory, chemical water, electrical, control instrument, civil engineering Major in structure, steel structure, machinery, equipment, etc.

With the abundant technical resources of Niunin Tech, we offer the following services.

Technical support section

Project
engineering
Technology development/
Encapsulation
Commission
Diagnosis
Improvement
Industry equipment
Diagnosis
Solution
Technological export Operation guidance

Featured Projects

Hefei New Energy Industrial Base

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 650t/d photovoltaic glass furnace

Core Technology

Niunin WCFB® Technology

Fuel Gas: 50000 Nm3/h

Emission Indicator

SO2 ≤ 20mg/Nm3

PM ≤ 20mg/Nm3

Launch Date: Dec, 2015

Hubei Greenhome Materials Technology INC.

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 45t/h Circulating Fluidized Bed Boiler

Core Technology
45t/h CFB boiler unit with med-temp and med-pressure, with SNCR/SCR denitration.

Fuel Gas: 50000 Nm3/h

Emission Indicator

NOx ≤ 50mg/Nm3

SO2 ≤ 35mg/Nm3

PM ≤ 10mg/Nm3

National leading level

Launch Date: May, 2017

Shanxi Linfen Jinneng Jiaohua ltd. Company

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 0.6 million tons Coke Oven

Core Technology

Niunin WCFB® Technology

Fuel Gas: 180000 Nm3/h

(per unit)

Emission Indicator

NOx ≤ 50mg/Nm3

SO2 ≤ 10mg/Nm3

PM ≤ 5mg/Nm3

Launch Date: Dec, 2018

Shanxi Guxian Jinhua Jiaohua ltd. Company

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 0.6 million tons Coke Oven

Core Technology

Niunin WCFB® Technology

Fuel Gas: 180000 Nm3/h

Emission Indicator

NOx ≤ 50mg/Nm3

SO2 ≤ 10mg/Nm3

PM ≤ 5mg/Nm3

Launch Date: Jan, 2019

Hebei Jinxi Group

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for 3#, 4#, 5#, 6# Shaft Furnaces

Core Technology

Niunin WCFB® Technology

Fuel Gas: 420000 Nm3/h

Emission Indicator

NOx ≤ 50mg/Nm3

SO2 ≤ 30mg/Nm3

PM ≤ 8mg/Nm3

Launch Date: Jan, 2019

Jilin Tonghua Iron & Steel (Group) Huinan Steel Rolling Mill

WCFB® Project of Flue Gas Desulfurization and
Dust Removalfor the Steel Rolling Heating Furnace

Core Technology

Niunin WCFB® Technology

Fuel Gas: 24000 Nm3/h
(per unit)

Temp: -30~40℃

Emission Indicator

SO2 ≤ 35mg/Nm3

PM ≤ 10mg/Nm3

Launch Date: Jan, 2019

Guxian Zhengtai Gasification Co., Ltd

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 0.6 million tons Coke Oven

Core Technology

Niunin WCFB® Technology

Fuel Gas: 180000 Nm3/h

Emission Indicator

SO2 ≤ 10mg/Nm3

PM ≤ 5mg/Nm3

Launch Date: March, 2019

Shanxi Yongchangyuan Gasfication Co., Ltd

WCFB® Project of Flue Gas Desulfurization and
Dust Removal for the 0.6 million tons Coke Oven

Core Technology

Niunin WCFB® Technology

Fuel Gas: 180000 Nm3/h
(per unit)

Emission Indicator

NOx ≤ 50mg/Nm3

SO2 ≤ 10mg/Nm3

PM ≤ 5mg/Nm3

Launch Date: April, 2019