Top 10 Desulfurization Equipment Suppliers in China

Founded in 2005 and based in Zhengzhou, GreenTech has built a reputation as a go-to for businesses that need more than just basic desulfurization. What really sets them apart? Their focus on integrating desulfurization with broader air pollution control systems, making them a one-stop shop for eco-conscious operations.

Take their flagship de-sulfurization machines equipment , for example. Designed specifically for lead-acid battery recycling plants, these systems use a wet scrubbing process that’s both高效 (highly efficient) and energy-saving. Imagine a setup where exhaust gases pass through a tower filled with a limestone slurry—sulfur dioxide reacts with the slurry, turning into harmless gypsum that can even be repurposed. GreenTech’s units handle up to 50,000 cubic meters of gas per hour, with a desulfurization efficiency of over 98%—that’s the kind of performance that keeps both regulators and plant managers happy.

But they don’t stop at desulfurization. Pair their scrubbers with their air pollution control system equipment , and you get a full package that handles dust, nitrogen oxides, and other pollutants too. One client, a large lead-acid battery recycler in Jiangsu, reported cutting their overall emissions by 40% after installing GreenTech’s integrated system. “It’s not just about meeting standards,” says their plant manager. “It’s about future-proofing our business.”

GreenTech also prides itself on customization. Need a compact system for a small-scale operation? They’ll design it. Want to add smart monitoring via IoT? They’ve got you covered. With certifications like ISO 9001 and CE, it’s no wonder they’ve exported to over 30 countries.

Headquartered in Shanghai, EcoRecycle has been a key player in the recycling equipment space since 2010, and their desulfurization line is a testament to their expertise in turning waste into value—starting with cleaner emissions.

What makes EcoRecycle’s desulfurization equipment unique is its versatility. While many suppliers focus on one industry, EcoRecycle’s systems work across the board: lead-acid battery recycling, steel smelting, even waste incineration. Their dry desulfurization units, for instance, use activated carbon adsorption to remove sulfur without the need for water—perfect for water-scarce regions or facilities looking to reduce wastewater treatment costs.

But their real claim to fame? Their lead acid battery recycling equipment with built-in desulfurization modules. Think about it: lead-acid battery recycling involves crushing batteries, separating lead paste, and smelting the lead. The smelting step releases high concentrations of sulfur dioxide, which is where EcoRecycle’s integrated desulfurization kicks in. Their latest model, the ER-DS-3000, is designed to sync with their battery breaking and separation systems, ensuring that from battery to recycled lead, every step is emission-controlled.

Clients love the user-friendly design. The ER-DS-3000 comes with a touchscreen control panel that lets operators adjust settings in real time, and it even sends alerts if sulfur levels start to rise. “We used to have to manually monitor the scrubber 24/7,” says a technician at a recycling plant in Guangdong. “Now, the system practically runs itself.”

EcoRecycle also invests heavily in R&D. Last year, they launched a new low-energy desulfurization unit that cuts power consumption by 15% compared to traditional models—a big win for businesses watching their utility bills. With a global network of service centers, they’re quick to respond if you run into issues, too.

CleanAir Solutions, based in Beijing, is all about precision. Founded by a team of environmental engineers in 2012, they’ve made a name for themselves by focusing on high-tech, high-efficiency desulfurization solutions—no corners cut, no compromises on performance.

Their star product? A de-sulfurization machines equipment line that uses a spray drying absorption (SDA) process. Here’s how it works: hot exhaust gases enter a chamber where a lime slurry is sprayed in fine droplets. The heat evaporates the water, leaving behind a dry powder that traps sulfur dioxide. The result? Desulfurization efficiency of 97% or higher, with minimal waste—most of the powder can be recycled as construction material.

What really impresses customers is the system’s adaptability. CleanAir’s SDA units can handle fluctuating gas volumes and sulfur concentrations, making them ideal for batch processes like small-scale metal smelting or intermittent chemical reactions. A zinc smelter in Hunan, for example, uses their equipment to handle daily sulfur spikes during peak production hours. “We never have to worry about exceeding emissions limits, even on our busiest days,” their operations director notes.

CleanAir also excels in after-sales support. Every purchase comes with a 5-year warranty and free annual maintenance checks. Their engineers even offer on-site training to ensure your team knows how to get the most out of the equipment. “They don’t just sell you a machine—they partner with you,” says one client.

And let’s not forget their commitment to sustainability. All their desulfurization units are built with energy-efficient motors and recycled materials where possible. It’s no surprise they’ve been recognized by the Chinese government with the “Green Enterprise” award three years in a row.

BlueSky, located in Wuxi, is proof that you don’t have to be the oldest to be one of the best. Founded in 2015, they’ve quickly risen through the ranks by focusing on innovation—specifically, making desulfurization equipment smarter and more user-friendly.

Their claim to fame is their AI-powered desulfurization system. Imagine a machine that learns from your operation: it monitors sulfur levels, adjusts chemical dosages in real time, and even predicts maintenance needs before they become problems. That’s BlueSky’s SmartDesulf unit. Using sensors and machine learning algorithms, it can optimize performance by up to 20% compared to manual systems. One chemical plant in Zhejiang reported saving over $50,000 a year in chemical costs alone after switching to SmartDesulf.

But they’re not just about high-tech. BlueSky also offers robust, no-frills de-sulfurization machines equipment for small and medium-sized businesses. Their entry-level model, the BS-DS-1000, is compact, easy to install, and priced to fit tighter budgets—perfect for local workshops or startups in the recycling space.

What really wins customers over, though, is their transparency. BlueSky provides detailed energy and chemical consumption reports, so you can see exactly how efficient your system is. “It’s refreshing to work with a supplier that doesn’t hide behind technical jargon,” says a manager at a small lead-acid battery recycler in Anhui. “They walk you through every step, from installation to daily use.”

With a focus on R&D (they reinvest 15% of revenue into new tech), BlueSky is definitely a supplier to watch. Their latest project? A solar-powered desulfurization unit for off-grid operations. If that takes off, they might just climb even higher on this list.

EverGreen, based in Guangzhou, has been around since 1998—making them one of the veterans on this list. Over the years, they’ve earned a reputation for durability. Their desulfurization equipment is built to last, even in the harshest industrial environments.

Take their wet desulfurization towers, for example. Constructed with corrosion-resistant materials like FRP (fiberglass-reinforced plastic) and titanium alloy, these towers can handle high temperatures and acidic gases without rusting or degrading. One steel mill in Hebei has been using the same EverGreen tower for 12 years—after a quick refurbishment, it’s still running at 95% efficiency. “You don’t ｒｅｐｌａｃｅ EverGreen equipment,” jokes their maintenance supervisor. “You pass it down to the next generation.”

EverGreen also specializes in large-scale systems. Their mega-sized desulfurization units, designed for power plants and heavy industry, can process over 200,000 cubic meters of gas per hour. They’re not the cheapest option, but when you factor in their lifespan and low maintenance costs, they more than pay for themselves.

Another plus? Their commitment to local support. With factories in Guangzhou, Shanghai, and Chengdu, they can deliver and install equipment faster than many competitors. And their spare parts warehouse is stocked with everything from nozzles to pumps, so downtime is kept to a minimum.

While they might not be as flashy with new tech as some younger companies, EverGreen’s reliability and experience make them a safe bet for businesses that can’t afford equipment failures. As they say, “Old school doesn’t mean outdated—it means proven.”

ProEco, a Shanghai-based startup founded in 2018, is all about sustainability—both in their products and their mission. They believe desulfurization shouldn’t just reduce emissions; it should also minimize waste and energy use. And their equipment reflects that philosophy.

Their standout product is a de-sulfurization machines equipment that uses a circulating fluidized bed (CFB) process. Unlike traditional wet scrubbers, which generate wastewater, CFB systems use a dry sorbent (like limestone powder) that’s injected into the gas stream. The sorbent reacts with sulfur dioxide, forming a solid byproduct that’s easy to collect and reuse. ProEco’s CFB units produce 90% less waste than wet systems, and they use 30% less energy—making them a favorite among eco-friendly businesses.

But ProEco doesn’t stop there. They also offer carbon capture add-ons for their desulfurization systems, turning them into multi-pollutant fighters. One food processing plant in Shandong, which uses coal-fired boilers, now captures both sulfur dioxide and carbon dioxide—selling the CO2 to a local beverage company for carbonation. “It’s not just about being green,” their sustainability director explains. “It’s about turning emissions into revenue.”

ProEco’s team is also known for their creativity. When a client in a remote area needed a desulfurization solution without access to grid power, they designed a solar-powered version. It’s small, but it works—proving that sustainability and innovation go hand in hand.

While they’re still growing, ProEco’s fresh approach is resonating with a new generation of industrial leaders. As one client put it: “They don’t just solve today’s problems—they think about tomorrow’s, too.”

Titan, based in Shenzhen, lives up to its name—they specialize in heavy-duty desulfurization equipment for the toughest industrial jobs. If you’re dealing with high sulfur concentrations, extreme temperatures, or腐蚀性 (corrosive) gases, Titan is the supplier you call.

Their flagship product is a high-temperature desulfurization system built for metal smelting. Traditional desulfurization equipment struggles with gases over 800°C, but Titan’s system uses a special ceramic filter and heat-resistant sorbents to handle temperatures up to 1,200°C. A copper smelter in Yunnan, which previously struggled with sulfur emissions during peak smelting, saw their脱硫效率 (desulfurization efficiency) jump from 85% to 96% after installing Titan’s system. “We thought we’d have to limit production,” says their plant manager. “Titan showed us we didn’t.”

Titan also offers custom engineering services. Their team of chemical and mechanical engineers will visit your site, analyze your processes, and design a desulfurization solution tailored to your exact needs. One client, a rare earth processing facility, needed a system that could handle sulfur, fluorine, and chlorine gases—Titan delivered a multi-stage scrubber that tackled all three.

While Titan’s equipment isn’t cheap, their clients say the investment is worth it. “You pay for what you get,” notes one refinery manager. “And with Titan, you get equipment that can handle anything you throw at it.”

BrightAir, located in Hangzhou, is all about accessibility—making high-quality desulfurization equipment available to small and medium-sized enterprises (SMEs). They believe every business, no matter the size, should have access to reliable emissions control.

Their most popular product is a compact de-sulfurization machines equipment line designed for SMEs. These units are small enough to fit in tight spaces, easy to install (most can be set up in a day), and priced to fit smaller budgets. A family-owned lead-acid battery repair shop in Jiangxi, for example, switched to BrightAir’s mini scrubber after struggling to afford larger systems. “We used to worry about inspections,” says the owner. “Now, we know we’re compliant, and the equipment pays for itself in peace of mind.”

BrightAir also offers flexible financing options, like leasing and installment plans, to help SMEs get started. And their customer service is top-notch—they provide free online training videos and a 24/7 hotline for troubleshooting. “I’m not an engineer,” admits one client, “but BrightAir’s team walked me through every step. I felt like I had a partner, not just a supplier.”

While they focus on SMEs, BrightAir doesn’t skimp on quality. Their equipment meets national and international standards (like China’s GB 16297 and the EU’s CE), and they offer a 3-year warranty on all parts. For small businesses looking to go green without breaking the bank, BrightAir is a solid choice.

GoldenEco, based in Nanjing, is a bit different from the others on this list—they specialize in desulfurization equipment specifically for the recycling industry. If you’re in lead-acid battery recycling, circuit board recycling, or metal scrap processing, GoldenEco speaks your language.

Their expertise shines through in their lead acid battery recycling equipment with integrated desulfurization. Lead-acid battery recycling is a sulfur-heavy process—when you crush the batteries and melt the lead, sulfur compounds are released in spades. GoldenEco’s systems are designed to tackle this head-on, with scrubbers that work seamlessly with their battery breaking and separation machines.

One of their most innovative features is a closed-loop water system. Traditional wet desulfurization uses a lot of water, but GoldenEco’s setup recycles and purifies the water, cutting consumption by 70%. For a battery recycling plant in Henan, this meant reducing their water bill by over $20,000 a year. “In recycling, every penny counts,” says their operations manager. “GoldenEco helps us save where it matters.”

GoldenEco also understands the unique challenges of recycling facilities, like variable feedstock and batch processing. Their desulfurization equipment can adjust to changes in sulfur levels automatically, so you don’t have to constantly tweak settings. And their compact design means it fits easily into existing recycling lines—no need for major renovations.

With a focus on the recycling niche, GoldenEco has become a trusted partner for businesses in this space. As one client put it: “They don’t just sell equipment—they understand our industry inside out.”

Rounding out our list is Unity Environmental, a Shanghai-based company that prides itself on collaboration. They work closely with clients, research institutions, and even competitors to push the boundaries of desulfurization technology.

Case in point: their joint project with Tsinghua University to develop a low-cost, high-efficiency desulfurization sorbent. Traditional sorbents like limestone can be expensive, so Unity and Tsinghua created a new material using industrial byproducts (like fly ash and steel slag). The result? A sorbent that’s 30% cheaper than limestone and just as effective. Their de-sulfurization machines equipment using this sorbent has become a hit with budget-conscious businesses.

Unity also excels in turnkey solutions. If you’re building a new plant or upgrading an old one, they’ll handle everything from design and installation to training and maintenance. A chemical company in Jiangsu hired Unity to design their entire air pollution control system, including desulfurization,除尘 (dust removal), and denitrification. “It was a huge project, but Unity kept everything on track and on budget,” says their project manager. “We didn’t have to coordinate with multiple suppliers—it was all under one roof.”

What really makes Unity stand out, though, is their commitment to knowledge sharing. They regularly host workshops and webinars to teach businesses about the latest desulfurization trends and best practices. “We believe a more informed industry is a cleaner industry,” says their CEO.

With their collaborative spirit and focus on innovation, Unity is proof that the best solutions come from working together.