Khatoon Abad

Project Info Cards

Client

NIPEC

Owner

National Iranian Copper Industries Company

Location

Kerman, Iran

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Khatoon Abad Acid Plant Project – Sulfuric Acid Production from Copper Smelter Gas

The Khatoon Abad Acid Plant Project is a major environmental and industrial initiative managed by the Nonferrous Industries Process, Engineering & Construction Company (NIPEC). This advanced plant is being constructed to process and neutralize the off-gases generated from the copper smelter plant in Khatoon Abad, Iran. The project is strategically focused on both environmental protection and value creation through the production of commercial-grade sulfuric acid.

The acid plant will process approximately 230,000 normal cubic meters per hour (Nm³/hr) of smelter gas, efficiently removing harmful contaminants. The incoming gas contains a high concentration of sulfur dioxide (SO₂), allowing for the production of sulfuric acid with concentrations ranging from 93% to 98.5%. The plant is engineered for a robust production capacity of about 2,950 tons per day (t/d), making it a significant contributor to Iran’s industrial chemical sector.

Primary Function and Project Objectives

The core function of the Khatoon Abad Acid Plant is to protect the surrounding environment by removing SO₂ and other contaminants from the smelter off-gases, thereby preventing atmospheric pollution and environmental damage. The SO₂ is converted into high-purity sulfuric acid, which is then marketed for industrial applications. This not only supports regulatory compliance but also transforms a challenging waste stream into a valuable commercial product.

Tehran Raymand Consulting Engineers has been appointed as the project’s detailed engineering and procurement consultant, responsible for the design, equipment selection, and technical oversight to ensure safe, reliable, and efficient operation of the new acid plant.

Sulfuric Acid Plant Units and Process Areas

The plant is composed of multiple specialized units, each designed for a specific function within the gas treatment and acid production process:

  • Unit 410: Gas Cleaning Plant – Initial purification of smelter off-gases, removing dust, particulate matter, and other impurities before SO₂ conversion.
  • Unit 420: Sulfuric Acid Plant – Main process unit where SO₂ is converted to sulfuric acid via catalytic oxidation and absorption, producing high-concentration acid.
  • Unit 430: Loading & Storage – Facilities for safe storage, handling, and loading of sulfuric acid for transportation and sale.
  • Unit 450: Acid Cooler Section – Reduces the temperature of produced acid to improve storage safety and downstream handling.
  • Unit 455: Water Cooler Section – Auxiliary cooling for process water to ensure energy efficiency and system integrity.
  • Unit 460: Electric Substation – Power distribution and supply infrastructure for plant operation.
  • Unit 480: Effluent Treatment Unit – Advanced treatment of liquid effluents and process wastewater, ensuring regulatory compliance and minimizing environmental impact.

The integrated design of these units enables the Khatoon Abad Acid Plant to achieve high operational efficiency, environmental stewardship, and production reliability.

Keywords: Khatoon Abad, Iran, acid plant, sulfuric acid, NIPEC, copper smelter, gas cleaning, SO2 removal, environmental protection, effluent treatment, Tehran Raymand, engineering, procurement, catalytic oxidation, acid storage, industrial chemicals.