Zhejiang Petroleum & Chemical Co. Ltd., also known as Zhejiang Petrochemical Co. Ltd. (ZPC), has completed startup of a second alkylation unit as part of the second phase of its 800,000-b/d integrated refining and petrochemical complex in Zhoushan, Zhejiang Province, China (OGJ Online, June 26, 2020).
Equipped with Lummus Technology LLC’s proprietary CDAlky technology, ZPC’s new alkylation unit processes C4s from the complex’s upstream refining and petrochemical units to produce 45,000 b/sd of alkylate, which also results in in a very high concentration of isobutylene in the total olefins blend, Lummus said on Aug. 12.
Lummus confirmed startup of the new unit marks the second CDAlky unit now in operation at ZPC’s complex, which together have a combined alkylate production capacity of 59,000 b/sd (OGJ Online, Apr. 20, 2017).
The first 400,000-b/d phase of ZPC’s complex was commissioned in late 2018, while Phase 2—which will nearly double processing and production capabilities at the site—was scheduled for commissioning during first-quarter 2021 (OGJ Online, Mar. 12, 2020).
ZPC—a joint venture of China-based Rongsheng Holding Group Co. Ltd. 51%, Juhua Investment Co. Ltd. 20%, Tongkun Investment Co. Ltd. 20%, and Zhoushan Marine Comprehensive Development and Investment Co. Ltd. 9%—previously said it would invest about 160 billion yuan to complete both phases of the project.
