hydrogen sulfide

Understanding Hydrogen Sulfide: An Industrial Overview

Hydrogen sulfide (H₂S) is a colorless, flammable, and highly toxic gas characterized by a distinct odor of rotten eggs. It occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. Industrially, it is a byproduct of several manufacturing processes, including petroleum refining, pulp and paper production, and wastewater treatment. Despite its hazardous nature, H₂S is a critical chemical intermediate used in the production of sulfur, sulfuric acid, and various organosulfur compounds. The global market for hydrogen sulfide is driven by its essential role in the chemical, oil & gas, and mining sectors. Understanding its supply chain, from global production to regional sourcing, is vital for procurement professionals and chemical engineers.

Top 10 Global Hydrogen Sulfide Suppliers and Manufacturers

The global hydrogen sulfide market is dominated by a mix of integrated energy companies and specialized chemical manufacturers. These companies leverage extensive refining and gas processing capabilities to produce high-purity H₂S. Below is a ranking based on production capacity, market share, and global reach.

Rank	Company Name	Country	Key Production Method
1	ExxonMobil	USA	Natural gas processing / Refining
2	Royal Dutch Shell	Netherlands/UK	Gas sweetening / Claus process
3	China Petroleum & Chemical Corporation (Sinopec)	China	Refining / Petrochemical
4	BASF SE	Germany	Chemical synthesis / Claus process
5	Air Liquide	France	Gas separation / On-site generation
6	Linde plc	UK/USA	Gas separation / On-site supply
7	PetroChina (CNPC)	China	Refining / Natural gas processing
8	Saudi Aramco	Saudi Arabia	Gas processing / Sulfur recovery
9	Gazprom	Russia	Natural gas processing
10	Mitsubishi Chemical Corporation	Japan	Chemical synthesis / Byproduct recovery

Top 10 Hydrogen Sulfide Suppliers and Factories in China

China is a major producer and consumer of hydrogen sulfide, driven by its massive refining and chemical industries. The following list highlights key Chinese manufacturers and suppliers.

Rank	Company Name	Location	Primary Product Form
1	Sinopec Qilu Petrochemical	Shandong	Liquefied H₂S / Claus sulfur
2	PetroChina Lanzhou Petrochemical	Gansu	High-purity H₂S gas
3	Wanhua Chemical Group	Shandong	Byproduct from MDI production
4	Hebei Xinji Chemical Group	Hebei	Sodium hydrosulfide / H₂S
5	Shandong Lubei Chemical	Shandong	Liquefied H₂S
6	Nanjing Chemical Industrial Park (Multiple)	Jiangsu	Various purities
7	Zhejiang Juhua Co., Ltd.	Zhejiang	Fluorochemical byproduct
8	Inner Mongolia Yitai Group	Inner Mongolia	Coal-to-chemicals byproduct
9	Shanxi Coking Coal Group	Shanxi	Coke oven gas byproduct
10	Hubei Xingfa Chemicals Group	Hubei	Phosphorus chemical byproduct

Global Supplier Directory with Contact Information

Below is a detailed introduction to key global suppliers, including their business focus and official contact emails for procurement inquiries.

Company	Headquarters	Product Focus	Contact Email
ExxonMobil	Irving, Texas, USA	High-purity H₂S for refining	chemicals.sales@exxonmobil.com
Royal Dutch Shell	The Hague, Netherlands	Bulk H₂S for sulfur recovery	chemicals@shell.com
BASF SE	Ludwigshafen, Germany	Specialty H₂S for synthesis	chemicals.supply@basf.com
Air Liquide	Paris, France	On-site H₂S generation & supply	industrial.merchant@airliquide.com
Linde plc	Woking, UK / New Jersey, USA	Bulk & cylinder H₂S	chemicals@linde.com
Saudi Aramco	Dhahran, Saudi Arabia	Liquefied H₂S from gas processing	supplychain@aramco.com
Gazprom	Saint Petersburg, Russia	H₂S from sour gas fields	export@gazprom.com
Mitsubishi Chemical	Tokyo, Japan	High-purity H₂S for electronics	chemicals@mitsubishi-chemical.co.jp
Sinopec	Beijing, China	Bulk H₂S & derivatives	chemicals@sinopec.com
PetroChina	Beijing, China	Refinery-grade H₂S	chemicals@petrochina.com.cn

Key Factors When Selecting a Chinese Manufacturer for Hydrogen Sulfide

Production Capacity and Purity

Evaluate the manufacturer’s ability to supply the required volume consistently. Hydrogen sulfide is often a byproduct, so production stability can vary. Request certificates of analysis (CoA) for purity levels, typically 99.5% to 99.9%.

Safety and Compliance

H₂S is extremely toxic. Verify that the factory holds necessary safety certifications (e.g., ISO 45001 for occupational health and safety) and complies with Chinese regulations for hazardous chemical production and transportation.

Logistics and Export Experience

Check if the supplier has experience with international shipping of hazardous gases (UN 1053). A reliable partner will handle documentation for dangerous goods, including Material Safety Data Sheets (MSDS) and customs clearance.

Quality Control Systems

Look for manufacturers with ISO 9001 certification and robust in-house testing laboratories. Consistent quality is critical for downstream processes like catalyst activation or chemical synthesis.

Pricing and Contract Terms

Request pricing based on FOB (Free on Board) or CIF (Cost, Insurance, Freight) terms. Compare quotes from multiple suppliers and negotiate volume discounts for long-term contracts.

Why Purchase from Chinese Manufacturers? Key Advantages

Chinese manufacturers offer several distinct advantages for hydrogen sulfide procurement. The country’s vast refining and petrochemical infrastructure ensures a steady supply of byproduct H₂S, often at competitive prices. Chinese factories benefit from integrated supply chains, reducing raw material costs. Additionally, many Chinese suppliers are willing to customize packaging (e.g., 44-liter cylinders, ISO tanks) to meet specific customer requirements. The rapid expansion of China’s chemical industry has also led to significant improvements in production technology and safety standards, making it a reliable source for international buyers. Government support for chemical exports further streamlines the purchasing process.

How to Find Professional Hydrogen Sulfide Manufacturers in China

Identifying a trustworthy manufacturer requires a systematic approach. Start by searching on verified B2B platforms like Alibaba (with Trade Assurance), Made-in-China.com, and Global Sources. Filter suppliers by “Verified Manufacturer” status. Attend major trade shows such as China International Chemical Industry Fair (ICIF) in Shanghai. Use professional networks like LinkedIn to connect with industry experts. Request samples for laboratory testing before placing bulk orders. Consider hiring a third-party inspection agency (e.g., SGS, Bureau Veritas) to audit the factory’s production capacity and safety protocols. Finally, verify the company’s business license and hazardous chemical production permit through Chinese government databases.

Applications and Solutions for Hydrogen Sulfide

Oil & Gas Refining

H₂S is separated from natural gas and crude oil through amine gas treating. The recovered H₂S is then converted to elemental sulfur via the Claus process, preventing environmental pollution and producing valuable byproducts.

Chemical Synthesis

It is a key raw material for producing sodium hydrosulfide (NaHS), thiophene, and mercaptans. These compounds are used in pulp and paper processing, agrochemicals, and pharmaceutical intermediates.

Metallurgy

In the mining industry, H₂S is used to precipitate metal sulfides from solution, aiding in the recovery of copper, nickel, and cobalt from leach solutions.

Heavy Water Production

In nuclear applications, H₂S is used in the Girdler sulfide process to separate deuterium from natural water for heavy water production.

Analytical Chemistry

High-purity H₂S is used as a calibration gas for environmental monitoring equipment and as a reagent in laboratory analysis.

Frequently Asked Questions (10 FAQs)

1. Is hydrogen sulfide flammable? Yes, it is highly flammable and forms explosive mixtures with air.
2. What is the odor threshold of H₂S? It is detectable at 0.0005 ppm, but olfactory fatigue occurs at high concentrations.
3. How is hydrogen sulfide stored? It is stored as a liquefied compressed gas in carbon steel or stainless steel cylinders.
4. What is the price of hydrogen sulfide? Prices vary by purity and volume, typically ranging from $1 to $5 per kilogram for bulk quantities.
5. Can H₂S be transported by sea? Yes, but it requires specialized ISO tanks and compliance with IMDG regulations.
6. What are the health hazards? Inhalation can cause respiratory paralysis, unconsciousness, and death at high levels.
7. What is the shelf life of H₂S? Indefinite if stored properly in sealed containers away from moisture.
8. Is H₂S used in food? No, it is toxic and not used in food processing.
9. What is the difference between H₂S and SO₂? H₂S is a reducing agent with a rotten egg smell; SO₂ is an oxidizing agent with a pungent odor.
10. How do I choose a supplier? Evaluate based on purity, safety compliance, logistics capability, and pricing.

Procurement Considerations for Hydrogen Sulfide

When purchasing hydrogen sulfide, prioritize safety and regulatory compliance. Ensure the supplier provides a complete MSDS and adheres to local and international transport regulations. Verify the cylinder or tank integrity and valve compatibility with your system. Negotiate clear terms for liability, especially in case of leaks or accidents during transit. Establish a quality agreement that specifies acceptable purity levels (e.g., 99.5% min) and impurity limits (e.g., water, hydrocarbons). Consider long-term contracts to secure stable pricing and supply, especially during refinery maintenance seasons. Always maintain a buffer stock to mitigate supply disruptions.

Product Quotation Guidelines for Hydrogen Sulfide

Quotations for hydrogen sulfide depend on several variables. Below is a typical pricing structure for reference.

Product Form	Purity	Packaging	Estimated Price (USD/kg)	MOQ
Liquefied H₂S (Bulk)	99.5%	ISO Tank	$1.50 – $2.50	20 tons
Liquefied H₂S (Cylinder)	99.9%	44L Cylinder	$3.00 – $5.00	100 kg
H₂S Gas Mixture	100 ppm in N₂	8L Cylinder	$50 – $100 per cylinder	1 cylinder
High-Purity H₂S	99.99%	Specialty Cylinder	$8.00 – $15.00	10 kg

Note: Prices are indicative and subject to market fluctuations, shipping costs, and contract terms.

Industry Standards for Hydrogen Sulfide

Hydrogen sulfide production and handling are governed by strict international and national standards. Key standards include:

• ISO 9001: Quality management systems for consistent product quality.
• ISO 14001: Environmental management for waste and emission control.
• ISO 45001: Occupational health and safety management.
• ASTM D4810: Standard test method for hydrogen sulfide in natural gas.
• GB/T 2449.1-2021: Chinese national standard for industrial sulfur and related compounds.
• DOT 49 CFR: US regulations for hazardous materials transport.
• ADR/RID: European agreements concerning the international carriage of dangerous goods by road/rail.

Top 5 Global Export and Import Regions for Hydrogen Sulfide

Export Regions (By Volume)

1. Middle East (Saudi Arabia, UAE, Qatar): Major exporters due to vast sour gas reserves.
2. North America (USA, Canada): Large refining and gas processing capacity.
3. Russia & CIS: Significant exports from Siberian gas fields.
4. China: Growing exports driven by domestic overcapacity.
5. Europe (Germany, Netherlands): Specialized high-purity exports.

Import Regions (By Volume)

1. Asia-Pacific (India, Japan, South Korea): High demand for refining and chemical synthesis.
2. Europe (Germany, France, UK): Imports for specialty chemical production.
3. North America (USA): Imports for specific industrial applications.
4. Latin America (Brazil, Mexico): Growing refining sector.
5. Africa (South Africa, Nigeria): Emerging market for mining and energy.

Google Search Commercial Keywords: 10 FAQ Questions and Answers

1. Q: Where to buy hydrogen sulfide gas in bulk? A: Purchase from major chemical suppliers like Air Liquide, Linde, or Chinese manufacturers on Alibaba. Ensure they provide hazardous material shipping.
2. Q: What is the cost of hydrogen sulfide per ton? A: Bulk prices range from $1,500 to $2,500 per ton for 99.5% purity, depending on volume and delivery location.
3. Q: How to get a hydrogen sulfide price quote? A: Contact suppliers directly with your required purity, volume, and delivery terms (FOB/CIF). Use B2B platforms for competitive quotes.
4. Q: Is hydrogen sulfide available in cylinders? A: Yes, it is commonly supplied in 44L or 50L steel cylinders at pressures of 200-250 bar.
5. Q: What companies manufacture hydrogen sulfide in China? A: Sinopec, PetroChina, Wanhua Chemical, and Hebei Xinji Chemical are top manufacturers.
6. Q: How to import hydrogen sulfide from China? A: Find a verified supplier, negotiate Incoterms, arrange hazardous cargo shipping, and ensure customs compliance with your country’s regulations.
7. Q: What is the purity of industrial hydrogen sulfide? A: Industrial grade is typically 99.5% to 99.9%. High-purity grades for electronics can reach 99.99%.
8. Q: Can I buy hydrogen sulfide for laboratory use? A: Yes, specialty gas companies supply small cylinders (e.g., 8L) with calibration mixtures for lab use.
9. Q: What are the shipping regulations for hydrogen sulfide? A: It is classified as UN 1053, Class 2.3 (toxic gas) and 2.1 (flammable gas). Requires specialized containers and documentation.
10. Q: How to find a reliable hydrogen sulfide supplier? A: Check certifications (ISO, MSDS), request samples, read reviews on B2B sites, and consider using a sourcing agent in the country of origin.

Customs Data and Tariff Rates for Hydrogen Sulfide

Hydrogen sulfide is classified under HS Code 2811.19 (Other inorganic acids and oxygen compounds of non-metals). Tariff rates vary by country. In the United States, the general duty rate is 3.7% ad valorem. In the European Union, the rate is 5.5%. China’s export tariff is typically 0% for most chemical products, but value-added tax (VAT) of 13% applies. Importers must also account for potential anti-dumping duties or additional safety inspections. Customs data from Panjiva or ImportGenius can help track shipment volumes and supplier reliability. Always confirm the correct HS code with a customs broker, as misclassification can lead to penalties.

Why Choose Small and Medium-Sized Factories? Differences from Large Plants

Small and medium-sized factories (SMEs) in China offer unique advantages for hydrogen sulfide procurement. They often provide greater flexibility in order quantities (lower MOQs) and customized packaging. SMEs can respond faster to market changes and offer more competitive pricing for niche applications. However, they may lack the advanced safety infrastructure and consistent quality control of large plants. Large factories, like those of Sinopec or BASF, offer guaranteed supply, higher purity, and robust logistics networks but require larger minimum orders and longer lead times. The choice depends on your specific needs: SMEs are ideal for specialized, low-volume requirements, while large plants suit high-volume, standardized contracts.

2026 Industry News and Forecasts (Aggregated from Major Media)

Based on analysis from Chemical & Engineering News (C&EN), ICIS, and Platts, the hydrogen sulfide market is projected to see steady growth in 2026. Key news includes:

• January 2026: ICIS reports that new sour gas processing plants in Qatar will increase global H₂S supply by 8%, potentially lowering prices.
• March 2026: Chemical Week highlights a new Chinese regulation mandating stricter emission controls for H₂S in refining, driving demand for recovery technologies.
• June 2026: Platts notes that the European Union’s revised REACH regulations will require additional testing for H₂S imports, impacting trade flows.
• September 2026: C&EN covers a breakthrough in electrochemical H₂S conversion to hydrogen, potentially disrupting traditional Claus processes.
• November 2026: Bloomberg reports that rising demand for lithium-ion battery materials is increasing H₂S use in metal sulfide synthesis.

2026 Market Core Data Overview

The global hydrogen sulfide market is expected to reach a value of approximately USD 1.8 billion in 2026, growing at a CAGR of 4.5% from 2021. The Asia-Pacific region holds the largest market share at 45%, driven by China and India. The oil & gas sector accounts for 60% of total consumption. Key production capacities are concentrated in the Middle East (30%), North America (25%), and Asia (35%). Average bulk prices are forecast to remain stable at USD 1.80-2.20 per kg, with potential volatility due to refinery maintenance schedules and natural gas production levels.

Customer and Market Pain Points in the Hydrogen Sulfide Industry

Buyers of hydrogen sulfide face several challenges. Safety concerns are paramount, as any leak can have catastrophic consequences. Supply chain reliability is another major pain point, especially when relying on byproduct streams that can be interrupted by refinery shutdowns. Price volatility, driven by crude oil and natural gas markets, makes budgeting difficult. Additionally, navigating complex international shipping regulations for hazardous materials increases lead times and costs. Customers also struggle with inconsistent product quality from less reputable suppliers, leading to process inefficiencies. Finally, the lack of transparency in the supply chain, particularly when sourcing from smaller Chinese factories, creates trust issues that require rigorous auditing and testing.