Promote high-quality development of environmental protection and purification in the new era

Specializing in the production of activated carbon, iron oxide, desulfurizer, fine desulfurizer, desulfurization catalyst hydrolysis catalyst, dimethyl ether synthesis catalyst, dechlorination agent, deamination agent, deoxidizer, deoiling agent and other series.

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Desulfurization, Naphthalene Removal, Adsorption, Purification

Activated carbon, iron oxide, desulfurizer, fine desulfurizer, desulfurization catalyst hydrolysis catalyst, dimethyl ether synthesis catalyst, dechlorinator, deamination agent, deoxidizer, deoiling agent

Learn More →
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PRODUCT CATEGORY

Promote the high-quality development of environmental protection and purification in the new era

Main products:Activated carbon, iron oxide, desulfurizer, fine desulfurizer, desulfurization catalyst hydrolysis catalyst, dimethyl ether synthesis catalyst, dechlorination agent, deamination agent, deoxidizer, deoilizer

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Hot Products

Special activated carbon for desulfurization and naphthalene removal

This product is used for desulfurization, naphthalene removal, and adsorption purification from various gas sources such as steel plant coke oven gas, coking plant vent gas, and city gas using a physical adsorption process.

Desulfurizer

Desulfurizer generally refers to agents that remove free sulfur or sulfur compounds from fuels, raw materials, or other substances; in the control and treatment of pollutants, it mainly refers to agents used to remove sulfur oxides (including SO2 and SO3) from waste gases.

XH Series Activated Carbon Desulfurizer

Mainly used for the purification of various sulfides in gases such as water gas, producer gas, generator gas, synthetic nitrogen, city gas, and chemical raw material gas.

YTL-101 Dimethyl Ether Catalyst

The catalyst uses advanced molding technology, featuring high strength, uniform particle size, and low bed resistance.

Iron oxide desulfurizer

Mainly used for desulfurization in city gas, chemical energy, and other chemical industries where medium gas or raw gas is used.

T5 Series Ambient and Medium Temperature Hydrolysis Catalysts

In the chemical raw materials gas produced from oil, coal, and coke (such as shift gas, synthesis gas, water gas, propylene, and liquefied gas), COS is the main organic sulfur component.

ABOUT US

Desulfurization, naphthalene removal, adsorption and purification

Changge Longji Industrial Co., Ltd.


The predecessor of Changge Longji Industrial Co., Ltd. was Changge Xinghuo Chemical Plant, which was put into operation in the mid-1970s. It specializes in the production of activated carbon, iron oxide, desulfurizer, refined desulfurizer, desulfurization catalyst hydrolysis catalyst, dimethyl ether synthesis catalyst, dechlorination agent, deamination agent, deoxidizer, deoilizer and other series of products. After years of development, the company has become a comprehensive scientific and technological enterprise integrating manufacturing, sales and scientific research. The company has relevant professional high-tech talents, advanced inspection and testing equipment and production equipment, with independent research and development capabilities, products continue to introduce new products, and always maintain the advancement and practicality of products in the industry; and constantly optimize the application of products Process, cooperate with users to launch new practical process solutions, not only to solve problems for users, but also to create higher benefits for users.

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1997 Year

The company was established in

1100 million

Registered capital

7000 tons

Annual production capacity

STRENGTH

Mature R & D infrastructure and management system

The company produces LJ series, MW, ZW, ZH series coal, wooden columnar, amorphous, powdery high-performance activated carbon, fruit shell, coconut shell special performance activated carbon, mainly used in petrochemical, environmental protection, chemical fertilizer, medicine, food, national defense, electronics and other industries air purification, desulfurization, various water treatment, organic solvent recovery, various catalyst carriers, anti-virus protection, decolorization, etc.

To provide customers with stable performance, Reliable quality products and services

Aggressive, compliance management, safety production, continuous improvement

1.1 drops do service wholeheartedly for the customer

Team support

Pre-sales, sales, after-sales service team, to provide you with intimate one-stop service

The company can assist users in the design and production of technical solutions, on-site testing related data and other technical guidance and service work according to the actual situation of users.

Big brand, good reputation, strength

Good quality, high efficiency, stable operation

Dust-free, low noise, environmental protection worry-free

Fast response, fast production, free training

Low investment, high return, high cost performance

AFTER-SALE SERVICE

Why choose us

The company has relevant professional high-tech talents, advanced inspection and testing equipment and production equipment, with independent research and development capabilities, products continue to innovate, and always maintain the advancement and practicality of products in the industry; and constantly optimize the application of products Process, cooperate with users to launch new practical process solutions

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Source Manufacturer

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Quality Assurance

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affordable price

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Support customization

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sufficient inventory

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Fast delivery

2025-01-07

The Importance of Technological Innovation for Enterprises!

Technological innovation is the key to a company's sustainable development and maintaining market competitiveness.

2025-01-07

Ensuring product quality is crucial for enterprises!

Ensuring product quality is a crucial and indispensable core element for enterprises.

2025-01-07

Information technology will become the essential path for small and medium-sized enterprises to enhance their competitiveness!

Information technology is not only a key means for enterprises to enhance their competitiveness, but also an essential path for achieving sustainable development.

2025-01-07

Longji Industrial Co., Ltd. in Changge City welcomes domestic and international customers to visit and provide guidance!

Our company specializes in the production of a variety of products including activated carbon, iron oxide, desulfurizers, refined desulfurizers, desulfurization catalysts, and hydrolysis catalysts!

2025-01-07

The official website is now live, bringing users a brand new experience.

Longge City Longji Industrial Co., Ltd. solemnly announces that our brand new official website is officially launched!

2025-01-07

Classification of Iron Oxide Desulfurizers

Currently, there are many manufacturers using this method to produce desulfurizers, but the content of hydrated iron oxide is relatively low.

2025-01-07

What are the characteristics of calcium-based desulfurizers?

The price of calcium carbide-based iron water pre-treatment composite desulfurizers is expensive, and corresponding equipment is required for use.

2024-12-24

How is the water treated after desulfurization in the desulfurization tower?

The water from the desulfurization tower after desulfurization contains high concentrations of suspended solids, high levels of chloride ions, high salinity, and heavy metals.