Wet start-up method for hydrogenation unit, energy-saving hydrogenation process and hydrogenation apparatus

US9574141B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC CORP. · CN

Inventors

• Ronghui Zeng · 东风镇, CN
• Tao Liu · Woodbury, US
• Xiangchen Fang · Fushun, CN
• Zhaoming Han · 东风镇, CN
• Xuehui Zhang · Beijing, CN
• Shike SUN · 东风镇, CN
• Chong Peng · Harrison, US
• Rong Guo · 东风镇, CN
• Jihua LIU · 东风镇, CN
• Benzhe Li · 东风镇, CN

Key dates

• Filing date: Oct 31, 2013
• Grant date: Feb 21, 2017
• Expiry date: Mar 25, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/4031
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a wet start-up method for hydrogenation unit, an energy-saving hydrogenation process, and a hydrogenation apparatus. The method involves heating a start-up activating oil to a specific temperature and flowing the heated oil through a bed of hydrogenation catalyst bed, so that the temperature at the catalyst bed layer is increased to 180±10° C. or above by means of heat exchange and the reaction heat generated from activation in the start-up method.