PERANCANGAN PABRIK BUTADIENA SULFON DARI SULFUR DIOKSIDA DAN 1,3-BUTADIENA DENGAN KAPASITAS PRODUKSI 28.000 TON/YEAR

Abstract

Indonesia continues to rely on fossil fuels for electricity production, primarily through coal-fired power plants (PLTU). The flue gas emitted from these plants is released into the environment without monitoring its composition. The current issue in plant design is the sulfur dioxide (SO₂) concentration exceeding the regulatory standards, with flue gas production at 3000 tons/hour and sulfur dioxide flow rate at 49,16 tons/hour. This sulfur dioxide must be managed and converted into a product.

The product derived from sulfur dioxide is butadiene sulfone, commonly used in the production of sulfolane and tetrahydrothiophene-1,1-dioxide, which serve as solvents for aliphatic extraction processes. To meet the required product quality, butadiene sulfone must be produced with a purity of 98%. The preliminary plant design aims to produce butadiene sulfone with a purity of 99,99% and a production capacity of 28000 tons/year.

The plant is to be established in Serang, Banten, covering an area of 408439 m² and operating 330 days per year. Raw materials such as sulfur dioxide and 1,3-butadiene will be sourced from the flue gas of PLTU Jawa 7 and China, respectively. The water required for the process and domestic use will be obtained from seawater, amounting to 100945 kg/hour.

Sulfur dioxide will be passed through an absorber and distillation column to achieve a purity of 99,99%. The 1,3-butadiene and sulfur dioxide will then be directed to a stirred tank reactor with a total conversion rate of 95%.

Based on the feasibility analysis, the butadiene sulfone plant is considered viable with a return on investment (ROI) of 21,89%.