Method for treating faulty valve without stopping in two-tower PTSA process

• Main Authors: YANG YINLONG, ZHOU LIKE, DING YI, BU LINGBING, ZHAO HAOCHUAN, AILIJIANG ROUZI, XIONG BO, ZHANG YONG, LIU YANG, HU XU, ZHU JICAI, PU ZHAOTING, NIE LEI, HUANG PINGLIANG, SUN LEI, GUO LI, PAN KE, YAO SUNKUN, WU WEI, ZHENG JIANCHUAN, JIN RONG, YANG ZHONGGUI, DANG KAI
• Format: Patent
• Language: Chinese; English
• Published: 20.02.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to the technical field of temperature swing adsorption, in particular to a method for treating a faulty valve without stopping in a two-tower PTSA process, which comprises the following steps: after a one-tower adsorption A flow is finished, pre-pressure relief AD is performed on raw material gas, the pre-pressure relief AD is to close a raw material gas inlet valve and a product gas outlet valve of the tower, and when the two valves are closed and not closed, an alarm is given; the program immediately enters a pause state and prompts an operator to process, and the fault is paused after being removed; after the step of boosting R of the adsorption tower, pre-adsorption RA is carried out from the step before the end of the adsorption period of another adsorption tower to the pre-decompression AD, the pre-adsorption RA is a raw material air inlet valve and a product air outlet valve of the adsorption tower which is about to enter the adsorption A and is opened in advance, and when the val