Value Reconstruction: How MirShine’s “Calcium-to-Ammonia Conversion” Technology Turns Environmental Costs into Profit

By the end of 2025, the continuous implementation of China’s solid waste control policies has significantly increased the disposal costs of desulfurization gypsum. At the same time, the draft revision of the Emission Standard of Air Pollutants for Thermal Power Plants has tightened limits on ammonia slip and carbon emissions.

For industrial enterprises still relying on calcium-based flue gas desulfurization, environmental compliance is no longer just about meeting regulatory requirements. It has evolved into a combined challenge of rising costs and stricter environmental constraints.

In this context, upgrading existing calcium-based systems to ammonia-based desulfurization, commonly referred to as “calcium-to-ammonia conversion,” is becoming an increasingly important strategic option. This approach not only eliminates the long-standing issue of gypsum disposal, but also converts sulfur dioxide in flue gas into ammonium sulfate fertilizer, enabling environmental treatment to generate economic value.

However, this transition is technically demanding. Challenges such as aerosol formation, ammonia slip, and scaling or blockage have historically limited the success of many projects. Delivering such a transformation requires capabilities across process design, engineering implementation, and long-term operation.

MirShine Environmental provides a comprehensive answer built on deep technical expertise. With origins tracing back to the Mingshui Fertilizer Plant established in 1958, the company has a strong chemical engineering foundation that distinguishes it from conventional environmental service providers. Over the past two decades, MirShine has completed seven generations of technological upgrades, each addressing critical challenges in flue gas treatment, from high-sulfur removal to ultra-low emission control and integrated resource utilization.

Its proprietary cascade separation and purification ammonia-based desulfurization technology has been recognized as internationally advanced. Based on this system, MirShine consistently achieves desulfurization efficiency above 99 percent, while maintaining sulfur dioxide emissions and ammonia slip well below ultra-low emission standards. More importantly, key industry challenges such as aerosol formation, ammonia slip, and system blockage have been systematically resolved, enabling stable long-term operation even under complex working conditions.

As of 2025, MirShine holds more than one hundred national patents, including several core invention patents. These achievements are the result of continuous development in real industrial environments, with technologies refined through hundreds of projects rather than limited to laboratory research.

In addition to technological strength, MirShine’s full EPC capability ensures reliable project execution. From initial assessment and system design to equipment manufacturing, construction, commissioning, and operation, all stages are managed within a unified framework. This integrated approach minimizes project risks and ensures consistency in quality and schedule.

The company’s proprietary “100-Day Project System” has demonstrated strong performance in practice. Multiple projects have been completed in significantly shorter timeframes than industry averages, while maintaining high quality standards. At the same time, all completed systems have achieved successful first-time commissioning, providing clients with a high level of operational certainty.

MirShine has delivered more than two hundred desulfurization and denitrification systems across industries including power generation, chemicals, steel, and coking. Its project experience covers both large-scale calcium-based and ammonia-based systems, giving the company a unique advantage in conversion projects. This dual perspective allows for accurate evaluation of existing systems and effective integration of new process technologies.

Compared with calcium-based desulfurization, ammonia-based technology offers a fundamentally different economic model. Instead of generating solid waste such as gypsum, it produces ammonium sulfate fertilizer that can be sold in the market. This transforms environmental treatment from a cost center into a potential source of revenue. Under current market conditions, by-product utilization alone can generate considerable annual returns for many projects.

As environmental regulations continue to tighten, gypsum disposal becomes more challenging, carbon costs are increasingly internalized, and ammonia slip control becomes more strictly enforced. Under these conditions, calcium-to-ammonia conversion is no longer a question of whether to adopt, but how to implement it effectively.

Over the past twenty years, MirShine has been selected by major power generation groups and leading industrial enterprises across China. Its combination of technical capability, project experience, and integrated delivery makes it a reliable partner for complex environmental upgrades.

Environmental protection is not the endpoint of industrial development, but the starting point for achieving higher quality growth. By transforming flue gas pollutants into valuable resources, MirShine Environmental provides a practical pathway for enterprises to align environmental compliance with economic performance.