Inline analytical technology for sulfuric acid and oleum: concentration and density, blending and warning limit detection
20Pages

Sulfuric acid and oleum Inline analytical technology for: ·· concentration & density ·· blending ·· warning limit detection

With high

quality, saving resources: LiquiSonic®. h-value, innovative sensor technology. curate, user-friendly. LiquiSonic® is an inline analytical system for determining the concentration in liquids directly in the running process and without delay. The device is based on high-precision measurement of the absolute sonic velocity and process temperature and thus allows the calculation and monitoring of concentrations. Benefits for the user include: · optimal plant control through online information about the state of the process · maximization of efficiency of processes · increasing of the product...

Inline process analysis

1.4 Sulfuric acid and oleum 9 2.3.1 Controller and field housing 13

Optimal and reliable process control requires fast information through robust and rapid process analytical technology. The use of the LiquiSonic® analyzer and its easy integration into existing plant technology results in an improvement of the asset utilization, process safety and product yield under relatively low project costs. There are several industries where the LiquiSonic® systems for concentration measurement in sulfuric acid and oleum can be applied: ·· sulfuric acid and oleum production ·· synthesis gas drying in the chemical and petrochemical industry ·· ·etching and pickling...

Oleum is produced by dissolving of SO3 (sulfur trioxide) in 100 % sulfuric acid. Often it is also referred as fuming sulfuric acid or disulfuric acid. In free SO3, typical measuring concentrations are from 0 wt% to 60 wt%, and for H2SO4 from 100 wt% to 115 wt%. For example, S03 is produced in the contact process by sulfur combustion. Thereby SO2 (sulfur dioxide) arises, which oxidize to SO3. Eventually, SO3 has to be collected in sulfuric acid as due to the intense exothermic reaction, a collection in water is not possible. The resulting oleum can be monitored inline by the LiquiSonic®...

Sulfuric acid and oleum By mixing sulfuric acid with oleum, any concentrations of high concentrated sulfuric acid can be adjusted. The adjustment requires a continuous inline monitoring of the concentration. Furthermore, the oleum entails a potential hazard and should not occur in certain absorption processes. The warning signals integrated in the LiquiSonic® analyzer signalize this prematurely and the information will be sent to the process control system by the periphery of the analyzer. The ultrasonic sensor incorporates two temperature sensors determining accurately the temperature,...

LiquiSonic® system The LiquiSonic® system consists of one or more sensors and a controller. The ultrasonic sensor has the actual ultrasonic measuring path and the highly precise temperature detection. The immersion sensor Ex 40-40 is especially used in hazardous areas and is approved by ATEX and IECEx certification zone 0 to 2. The sensor can be delivered with explosion protection type II 2 G EEx de IIC T3, T4, T5 or T6. The controller 30 is a highly efficient device which includes up to four sensors. They can be installed in different steps with a maximum distance of 1,000 m between...

LiquiSonic® 40 analyzer enables the determination of concentration in 3-component liquids. For example, in neutralization processes it is possible to determine separately the concentration of the scrubbing solution and the salt. The measuring principle is based on the fact that concentration changes of individual components of a liquid affect physical variables like sonic velocity, conductivity and density. This characteristic is stored as calculation mode in the evaluation unit (controller) to convert the physical variables in concentration values. The flange sensor has a highly efficient...

LiquiSonic® system Controller and field housing The controllers are designed for rack-mounted systems. In order to be able to mount controllers into the field, two variants of field housings made of plastic or stainless steel can be delivered, which meet on-site conditions in an optimal way. 19“ housing 3RU material: anodized aluminum dimensions: 482.9 (19“) x 133.3 (3RU) mm application: rack-mounted system Wall mount housing (stainless steel) material: stainless steel DIN 1.4301 (AISI 304) protection degree: IP66 (NEMA 4X) dimensions: 430 x 300 x 230 mm window: VSG with 6 mm thickness...

The fieldbus option provides the possibility to integrate the controller into a Process Control System (PCS) or to automate the process run via programmable logic controller (PLC). Beside the transfer of measuring values like the concentration or temperature, it is also possible to exchange parameters and control data (e.g. product switch). Network integration The LiquiSonic® controller has an Ethernet interface, with which via a SMB protocol the integration into a Microsoft Windows network is possible. All controller integrated into the network appear in the “network environment“ within...

LiquiSonic® system SensoTech offers the software SonicWork, which enables an optimal configuration and data ex- change of LiquiSonic® analyzers. With SonicWork the access to all configurations is open and the data memory can be read out with a PC or laptop. Recording of process trends With SonicWork, it is possible to display process trends. In doing so, different measured data can be visualized in real time during a laboratory measure- ment and these data can also be stored to the internal memory in addition. Loading of product dataset If the process changes, it can be necessary to pass a...

Enthusiasm for technical progress is the driving force behind our company as we seek to shape the market of tomorrow. As our customer you are at the centre of all our efforts and we are committed to serving you with maximum efficiency. We work closely with you to develop innovative solutions for your measurement challenges and individual system requirements. The growing complexity of application-specific requirements means it is essential to have an understanding of the relationships and interactions involved. Creative research is another pillar of our company. The specialists in our...