Abstract: Alkylate has become one of the indispensable premium blending components for national VI gasoline and ethanol gasoline. SINOPEC has independently developed the sulfuric acid alkylation technology (SINOALKY) to meet the needs of alkylate market. SINOALKY integrates N-type multi-stage static mixer, self-vaporizing acid-hydrocarbon separator and multi-feeding method in its process. The first 200kt/a industrial demonstration unit using the SINOALKY was completed and put into operation at SINOPEC Shijiazhuang Refining & Chemical Company, on June, 2018. Industrial operating results confirmed that under full load, the RON of alkylate is 96.5-97.0, and the acid consumption is 58.9 kg/t. SINOALKY has the advantages of simple process, easy reactor maintenance, low acid consumption and high product quality.

Key words: sulfuric acid alkylation, static mixture, multiple feedings, acid/hydrocarbon coalescer