TONEXUS Environmental Protection Technology Co., Ltd.
TONEXUS Environmental Protection Technology Co., Ltd.

20 Years of Experience in Low Temperature Flue Gas Treatment Rich Industry Flue Gas Treatment Cases

The project footprint covers more than 20 industries such as steel, building materials, paper, power, etc., with a total of more than 800 sets of cases worldwide.

  • Paper Industry
  • Steel Industry
  • Power Industry
  • Non-ferrous Smelting
  • Other Industries
2500 tds/d Alkali Recovery Furnace Flue Gas Denitration Project
2500 tds/d Alkali Recovery Furnace Flue Gas Denitration Project
  • Outlet NOx ≤50 mg/Nm³.

  • The Low-Temperature SCR Denitration Technology and Equipment for Alkali Recovery Furnace Flue Gas was appraised by CEIA as reaching the internationally leading level.

Jinlong Pulp Alkali Recovery Furnace Flue Gas Ultra-Low Emission EPC Retrofit Project​​
Jinlong Pulp Alkali Recovery Furnace Flue Gas Ultra-Low Emission EPC Retrofit Project​​
  • Outlet NOx ≤45mg/Nm³, SO₂≤25mg/Nm³, dust ≤5mg/Nm³.

  • The desulfurization by-product is recyclable for the alkali recovery process.

RB2-7500tds/d Alkali Recovery Furnace Flue Gas Low-Temperature SCR Denitration Project
RB2-7500tds/d Alkali Recovery Furnace Flue Gas Low-Temperature SCR Denitration Project
  • Outlet NOx emission ≤ 40mg/Nm³.

  • Simple, stable equipment; low operating cost; easier later maintenance.

Coke Oven Flue Gas Purification Facilities EP Project, Integrated Dedusting and Denitration System​
Coke Oven Flue Gas Purification Facilities EP Project, Integrated Dedusting and Denitration System​
  • Reduce the Nox emission from 700–800 mg/Nm³ to below 150 mg/Nm³.

  • Help the client avoid risks such as fines and production restrictions due to non-compliance with environmental regulations.

2×600 t/d Lime Kiln Denitration Project​
2×600 t/d Lime Kiln Denitration Project​
  • Reduce the Nox emission from 500 mg/Nm³ to below 50 mg/Nm³.

  • Adopt the TONEXUS Twin-Shaft Lime Kiln Flue Gas Specific Denitration Catalyst, realizing efficient and stable denitration at medium-low temperatures of 195~220°C in the presence of sulfur.

4#660m² Sintering Flue Gas Low-Temperature Denitration Project​​
4#660m² Sintering Flue Gas Low-Temperature Denitration Project​​
  • Reduce the Nox emission from 300mg/Nm³ to below 30mg/Nm³.

  • Adopt the TONEXUS Sintering Flue Gas Specific Denitration Catalyst, realizing efficient and stable denitration at 180°C low temperature after passing through activated carbon adsorption desulfurization.

15 Units Biomass Boiler Flue Gas Denitration Project
15 Units Biomass Boiler Flue Gas Denitration Project
  • Outlet NOx <50 mg/Nm³.

  • The equipment is simple, stable with low operating costs, and low-temperature denitration thereby increases the boiler's waste heat recovery.

Desulfurization Technical Retrofit Project for No.2 & No.3 Boilers at Power Plant No.3 in Liugang Power Plant (2 * 55MW Gas-Fired Power Generation Boilers)​​
Desulfurization Technical Retrofit Project for No.2 & No.3 Boilers at Power Plant No.3 in Liugang Power Plant (2 * 55MW Gas-Fired Power Generation Boilers)​​
  • SO₂ emission ≤30 mg/Nm³, dust emission≤5 mg/Nm³.

  • Adopt dry desulfurization technology, featuring simple and stable equipment, low operating costs, and simpler post-maintenance.

SCR Catalyst Supply Project for Ningbo Waste Incineration Plant​
SCR Catalyst Supply Project for Ningbo Waste Incineration Plant​
  • Outlet NOx ≤75 mg/Nm³.

  • First application of Chinese Low-Temperature SCR Catalyst in the waste incineration industry; First replacement of imported catalyst with Chinese Low-Temperature SCR Catalyst in the waste incineration industry.

Environmental Project for Flue Gas Denitration in the First Alumina Plant Clinker Kiln​
Environmental Project for Flue Gas Denitration in the First Alumina Plant Clinker Kiln​

Outlet NOx ≤50 mg/Nm³ and ammonia slip ≤3 ppm when the clinker kiln operates at 100% load.

1# & 2# Chromate Rotary Kiln Flue Gas Denitration (EP)
1# & 2# Chromate Rotary Kiln Flue Gas Denitration (EP)
  • NOx emission≤50 mg/Nm³

  • The equipment is simple and stable with low operating costs and simpler post-maintenance.

Alumina Sintering Furnace Medium-Low Temperature SCR Denitration Project
Alumina Sintering Furnace Medium-Low Temperature SCR Denitration Project
  • Reduce NOx from 1,440~2,000 mg/Nm³ to below 100 mg/Nm³.

  • Annual Nox emission reduction: 293.46 t/year ~ 416.1 t/year.

Glass Kiln Low-Temperature SCR Denitration Project​
Glass Kiln Low-Temperature SCR Denitration Project​
  • Reduce NOx from 3000 mg/Nm³ to 500 mg/Nm³.

  • Denitration efficiency reaches 38.3%, featuring low operating costs and simpler post-maintenance.

Ceramics Low-Temperature SCR Denitration Project
Ceramics Low-Temperature SCR Denitration Project
  • Reduce NOx from 500 mg/Nm³ to 100 mg/Nm³.

  • Denitration efficiency reaches 80%, featuring low operating costs and simpler post-maintenance.

Chemical Incineration Low-Temperature SCR Denitration Project​​
Chemical Incineration Low-Temperature SCR Denitration Project​​
  • Outlet NOx <100 mg/Nm³ with an efficiency rate of 82%.

  • Adopting low-temperature SCR denitration catalyst, the equipment is simple and stable, does not require heating, and features low operating costs and simpler post-maintenance.

Leader in Low-temperature SCR Catalysts

TONEXUS Low-temperature SCR Catalyst 5 Big Performance Advantages

  • Significant low-temperature high activity (150-160°C, ≥80% efficiency; 160-400°C, ≥90% efficiency)

  • Strong resistance to sulfur poisoning, alkali metal poisoning properties

  • Excellent hydrophobicity

  • Highly efficient synergistic removal of dioxins

  • With obvious advantages of energy saving and consumption reduction


  • low temperature scr catalyst manufacturer
  • low temperature scr catalyst for use
  • low temperature scr catalyst suppier
  • low temperature scr catalyst for users
  • low temperature scr catalyst manufacturer
  • low temperature scr catalyst for use
  • low temperature scr catalyst suppier
  • low temperature scr catalyst for users

Low-temperature Flue Gas Purification Engineering Expert

Comprehensive Process Technology, Rich Portfolio, and Near-zero Emissions

With the combination of low-temperature SCR, desulfurization, and dust removal in the Tonexus flue gas treatment integrated process, it can realize multi-pollutant co-efficient and simultaneous treatment, covering many high pollution industries such as iron and steel, coking, paper making, etc., and realizing ultra-low emission.


Diverse Cooperation Modes, Professional & Efficient Services, Concurrent Emission Reduction, Energy Conservation and Carbon Reduction

Provide EPC turnkey services, product supply, operation and maintenance, contract energy management and other service modes, with the ability to design, supply, installation, commissioning, training and other full-process services, to achieve emissions reduction and energy saving and carbon reduction synchronized landing.


20+Industry Coverage, 800+Sets of Project Cases

The project footprint covers a wide range of industries such as steel, building materials, paper and so on, with a total of more than 800 sets of cases nationwide and overseas, accumulating a wealth of experience.

National Green Factory--Creating an Energy Efficient Green Supply Chain System

  • 35,000 m² +

    Digital, Intelligent and Fully Automatic Production Base

  • 20,000 t +
    Year of Environmental Equipment Production


  • 18,000 m³ +
    Annual Production Capacity of Honeycomb-type Low-temperature SCR Catalysts


  • 4,000 m³ +
    Annual Production Capacity of Coated Catalysts


  • desulphurisation
  • flue gas desulphurisation fgd system
  • flue gas desulphurisation plant
  • flue gas desulphurisation fgd
  • desulphurisation of natural gas
  • flue gas desulphurisation
  • desulphurisation of coal

Technical Research and Development

3 Large R&D Centers, More than 200 Authorized Patented Technologies

TONEXUS has 3 R&D centers, more than 130 R & D team, equipped with more than 100 sets of high-end R&D test equipment, long-term investment in flue gas treatment, catalytic chemistry and other project research, has a wealth of R&D and innovation capabilities, has been a total of more than 200 authorized patented technologies.


Technical Research and Development
A InventionPatents
Flue Gas Desulphurization FGD
B Utility Patents
Flue Gas Sulphurisation Method
Flue Gas Treatment
  • High cost of meeting emissions standards?

  • Solving low temperature desulfurization and denitrification challenges?

  • Tackling Tough Emissions Standards?


Free Download of techniacl manual
Flue Gas Treatment
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Flue Gas Treatment
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Process & Technology consult
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