Industry Overview

Flare systems are critical safety equipment for industrial facilities that handle combustible gases. They provide a controlled means of disposing of excess hydrocarbons, emergency venting, and process off-gases through thermal oxidation. Global gas flaring volumes reached 151 billion cubic meters (bcm) in 2024, according to the World Bank, the highest level since 2007, underscoring the growing need for efficient, compliant relief systems. Shandong Zexuan Environmental Protection Technology Co., Ltd., established in 2015 in Jinan, China, specializes in industrial flare systems, thermal treatment equipment, and waste gas combustion solutions.

The Challenge: Safer Disposal of Industrial Waste Gases

Oil refineries, petrochemical plants, LNG terminals, chemical facilities, and landfill sites generate a variety of combustible and hazardous gases. These gases must be safely combusted to prevent overpressure, protect personnel and equipment, and meet emission regulations. The global flare systems market is valued at approximately USD 4.8 billion in 2025, driven by regulatory pressure on hydrocarbon emissions and recovery in oil and gas investments (Dataintelo). Selecting the right type of flare system — elevated, ground, enclosed, or mobile — depends on gas composition, flow rate, site constraints, and compliance standards.

Zexuan’s Flare System Portfolio

Zexuan offers a comprehensive range of flare systems classified into three main categories: elevated flare systems (self-supported, guyed-wire, derrick-supported, and demountable types), enclosed ground flare systems (EGF), and skid-mounted LNG/LPG flare systems. Additionally, the company supplies flare tips (ZX-FT Series — sonic, smokeless, air assisted, Coanda) and thermal oxidizer systems (TO, RTO, RCO series).

Technical Specifications & Capabilities

Zexuan’s elevated flare systems can reach heights from 10 m to 150 m+, with turndown ratios up to 100:1 and combustion efficiency typically ≥98%–99.9% depending on design conditions. Operating temperatures reach up to 1100°C. The enclosed ground flare ZX-EGF Series operates at 800°C–1200°C and achieves combustion efficiency up to 99.9% with low radiation and low noise. Skid-mounted systems (ZX-SMF Series) are compact, designed for rapid deployment in LNG bunkering, receiving terminals, and pipeline facilities, with compatibility for cryogenic service down to LNG conditions.

Material selection is project-dependent and includes carbon steel, stainless steel SS304/SS316L, SS310S, Inconel 625, and Hastelloy alloys for high-temperature and corrosive environments. Zexuan’s quality management system is ISO 9001:2015 certified (certification number 26326Q00079R001) by CSU International Certification Co., Ltd., covering the development of waste gas treatment equipment and control units.

Key Application Scenarios

Oil & Gas Refining: Zexuan elevated and enclosed ground flares are used for safe combustion of excess and emergency process gases under high-pressure hydrocarbon gas, emergency pressure relief, and startup/shutdown venting conditions. Common in markets including the Middle East, Russia, US, and Canada.

Petrochemical & Chemical Plants: Enclosed ground flares and thermal oxidizers (ZX-TO/RTO/RCO) treat process off-gases and VOC emissions under hazardous and corrosive gas conditions, with optional heat recovery. Frequently deployed in Southeast Asia, China, and Europe.

LNG Terminals & Gas Processing: Skid-mounted LNG/LPG flare systems safely dispose of boil-off gas (BOG) and handle emergency releases. Compact design and fast installation are critical in Turkey, Southeast Asia, Australia, and the US.

Landfill Gas & Biogas: The ZXE-BGF Series biogas flare is designed for methane-containing gas (35%–65% CH₄) with methane destruction efficiency ≥98%. Common in Africa, India, Brazil, and Mexico.

Natural Gas Pipeline & Compressor Stations: Elevated and skid-mounted flares provide controlled combustion during pipeline maintenance and emergency releases, with remote operation capability. Major markets include Central Asia and Russia.

Market Trends

The global flare systems market is expanding, with the Enclosed Ground Flare segment alone valued at USD 113 million in 2024 (Intel Market Research). Asia-Pacific holds a 35% share of the flare gas recovery system market, the largest regional share globally (Grand View Research). The VOC control systems market, which includes thermal oxidizers, is estimated at USD 7.5 billion in 2025 (Fact.MR), with China identified as a key growth market (5.4% CAGR). These figures reflect tightening emission standards and increased investment in emission reduction infrastructure.

Comparison with Traditional Solutions

Traditional elevated open flares, while reliable for emergency relief, can generate visible flame, noise, and thermal radiation. Enclosed ground flares (EGF) reduce noise and radiation, making them suitable for space-constrained sites and environmentally sensitive areas. Zexuan’s EGF design achieves up to 99.9% combustion efficiency with low radiation. However, enclosed ground flares typically require more frequent maintenance of refractory lining and have higher capital cost compared to simple elevated flares. This trade-off must be evaluated based on site-specific requirements and local regulations.

Future Outlook

The industry is moving toward integrated flare gas recovery systems, digital monitoring, and automated ignition controls to improve uptime and reduce emissions. Zexuan, with its 24,100 m² manufacturing base, over 80 employees including 30+ engineers, and annual manufacturing capacity of 60+ sets, is positioned to support this shift. The company’s ongoing focus on low-carbon combustion technologies, intelligent control systems, and digital operation solutions aligns with global decarbonization trends.

Frequently Asked Questions

What is the difference between an elevated flare and an enclosed ground flare?

Elevated flares are tall structures (10 m to 150 m+) that discharge gases at high elevation to disperse heat and combustion products. Enclosed ground flares (EGFs) contain the combustion within a refractory-lined enclosure, reducing noise and thermal radiation while achieving high combustion efficiency (up to 99.9%). Zexuan’s ZX-EGF Series is designed for limited-space areas and low-noise requirements.

What certifications does Zexuan hold for its flare systems?

Zexuan’s quality management system is certified to ISO 9001:2015 (GB/T 19001-2016) with certification number 26326Q00079R001 issued by CSU International Certification Co., Ltd. This certification applies to the development of waste gas treatment equipment and control units for both the China domestic and international markets.

Can Zexuan customize flare tips for specific gas compositions?

Yes. The ZX-FT Series flare tips can be configured as sonic, smokeless, air assisted, or Coanda types, with customizable diameter and gas capacity. They are manufactured from SS316L, SS310S, or Inconel 625 to withstand operating temperatures up to 1100°C, and are suitable for refinery, petrochemical, LNG, and oil & gas processing industries.

Which industries benefit most from Zexuan’s thermal oxidizers?

Zexuan’s VOC thermal oxidizer systems (ZX-TO, ZX-RTO, ZX-RCO) are used in chemical, pharmaceutical, coating, and petrochemical industries for continuous treatment of VOCs and hazardous gases. They operate at 800°C–1200°C with destruction efficiency up to 99%+, and are available with heat recovery options.

Does Zexuan offer skid-mounted or mobile flare systems?

Yes. The ZX-SMF Series skid-mounted LNG/LPG flare system is designed for portable and fast-installation applications, including LNG bunkering, gas storage, pipeline facilities, and offshore gas applications. It features a compact design, flexible mobility, and integrated ignition/control system.

For a complete overview of Zexuan’s product range and technical capabilities, download the company brochure:
Shandong Zexuan Environmental Protection Technology Co., Ltd. – Product Brochure (PDF)