A SYSTEM AND A METHOD FOR PRODUCING AQUEOUS SULPHURIC ACID

A system (100) for producing aqueous sulphuric acid. The system (100) comprises a first heat exchanger (410) configured to cool water and/or aqueous sulphuric for producing cooled water and/or cooled aqueous sulphuric acid; a pre-cooling unit (200) configured to pre-cool some gas containing sulphur trioxide， the pre-cooling unit (200) comprising an inlet or inlets (212， 214) for receiving [i] the gas containing sulphur trioxide and [ii] the cooled water and/or the cooled aqueous sulphuric acid， an outlet (216) for letting out aqueous sulphuric acid and the gas containing sulphur trioxide， and a first nozzle (220) for spraying the cooled water and/or the cooled aqueous sulphuric acid onto the gas containing sulphur trioxide to cool the gas containing sulphur trioxide. The system further comprises a condensation tower (300) comprising a first inlet (302) for receiving the cooled gas containing sulphur trioxide and aqueous sulphuric acid from the pre-cooling unit (200) and means (320) for circulating the aqueous sulphuric acid within the condensation tower (300) by spraying in order to strengthen the aqueous sulphuric acid. In addition， a method for producing aqueous sulphuric acid. Furthermore， a pre-cooling unit (200) suitable for cooling gas comprising sulphur trioxide from a temperature of at least 400 °C to a temperature of at most 150 °C. A system (100) for producing aqueous sulphuric acid. The system (100) comprises a first heat exchanger (410) configured to cool water and/or aqueous sulphuric for producing cooled water and/or cooled aqueous sulphuric acid; a pre-cooling unit (200) configured to pre-cool some gas containing sulphur trioxide， the pre-cooling unit (200) comprising an inlet or inlets (212， 214) for receiving [i] the gas containing sulphur trioxide and [ii] the cooled water and/or the cooled aqueous sulphuric acid， an outlet (216) for letting out aqueous sulphuric acid and the gas containing sulphur trioxide， and a first nozzle (220) for spraying the cooled water and/or the cooled aqueous sulphuric acid onto the gas containing sulphur trioxide to cool the gas containing sulphur trioxide. The system further comprises a condensation tower (300) comprising a first inlet (302) for receiving the cooled gas containing sulphur trioxide and aqueous sulphuric acid from the pre-cooling unit (200) and means (320) for circulating the aqueous sulphuric acid within the condensation tower (300) by spraying in order to strengthen the aqueous sulphuric acid. In addition， a method for producing aqueous sulphuric acid. Furthermore， a pre-cooling unit (200) suitable for cooling gas comprising sulphur trioxide from a temperature of at least 400 °C to a temperature of at most 150 °C.

一种用于生产硫酸水溶液的系统 (100)。该系统 (100) 包括第一热交换器 (heat exchanger)，其配置为对水和/或硫酸水溶液进行冷却，以得到冷却水和/或冷却后的硫酸水溶液；预冷单元 (pre-cooling unit，200)，其配置为对部分含三氧化硫 (sulphur trioxide) 的气体进行预冷却。该预冷单元 (200) 包括一个或多个入口 (212、214)，用于接收[i]含三氧化硫的气体以及[ii]冷却水和/或冷却后的硫酸水溶液；出口 (216)，用于排出硫酸水溶液与含三氧化硫的气体；以及第一喷嘴 (nozzle，220)，用于将冷却水和/或冷却后的硫酸水溶液喷射至含三氧化硫的气体中，以对该气体进行冷却。该系统还包括冷凝塔 (condensation tower，300)，其具有第一入口 (302)，用于接收来自预冷单元 (200) 的冷却后含三氧化硫的气体与硫酸水溶液；以及循环组件 (320)，用于通过喷射的方式在冷凝塔 (300) 内循环硫酸水溶液，以实现硫酸水溶液的增浓。此外，本发明还涉及一种生产硫酸水溶液的方法。进一步而言，还涉及一种适用于将含三氧化硫的气体从至少400℃冷却至多150℃的预冷单元 (200)。
一种用于生产硫酸水溶液的系统 (100)。该系统 (100) 包括第一热交换器 (heat exchanger)，其配置为对水和/或硫酸水溶液进行冷却，以得到冷却水和/或冷却后的硫酸水溶液；预冷单元 (pre-cooling unit，200)，其配置为对部分含三氧化硫 (sulphur trioxide) 的气体进行预冷却。该预冷单元 (200) 包括一个或多个入口 (212、214)，用于接收[i]含三氧化硫的气体以及[ii]冷却水和/或冷却后的硫酸水溶液；出口 (216)，用于排出硫酸水溶液与含三氧化硫的气体；以及第一喷嘴 (nozzle，220)，用于将冷却水和/或冷却后的硫酸水溶液喷射至含三氧化硫的气体中，以对该气体进行冷却。该系统还包括冷凝塔 (condensation tower，300)，其具有第一入口 (302)，用于接收来自预冷单元 (200) 的冷却后含三氧化硫的气体与硫酸水溶液；以及循环组件 (320)，用于通过喷射的方式在冷凝塔 (300) 内循环硫酸水溶液，以实现硫酸水溶液的增浓。此外，本发明还涉及一种生产硫酸水溶液的方法。进一步而言，还涉及一种适用于将含三氧化硫的气体从至少400℃冷却至多150℃的预冷单元 (200)。