The use of spray nozzles to rapidly cool or quench gas streams is an essential application in many industrial processes, such as chemical reaction vessels, incineration, and power plant absorber gas inlet. An optimized spray quench design requires engineering analysis of the operating environment, spray nozzle performance and process reliability. This technical paper describes the design considerations for spray gas quench systems such as nozzle selection, process control, system configuration and reliability. Application of this knowledge can result in a gas quench system that operates efficiently and reliably with reduced vessel size, reduced atomization energy consumption, and minimized downtime, to achieve capital and operational cost savings for your process.09/16/2009
Organic cellulose and biomass filtration, washing and drying is very unpredictable and even minor differences in feedstock,washing or cake moisture requirements can require a different process solution. Both vacuum and pressure operations can provide equivalvent process results. On-site testing is required to determine the optimum filter selection.09/11/2009
Companies can gain great insight into how their process operates, find problems, and improve quality by using process analytical software.
Process Analytics and Intelligencesometimes called Manufacturing Intelligencehas transformed the way companies produce goods, understand their manufacturing processes, and ensure a quality product in ways we could not have foreseen ten years ago.08/12/2009
It's a classic scenario in chemical manufacturing- struggling to coordinate the opinions of sales with manufacturing and supply chain initiatives on what, when, and where products should be produced. The lack of supply chain coordination can lead to frequent changes in production schedules, expedited shipments, excessive stock outs, poor customer service levels, lack of visibility into future demand, inventory in the wrong place and at the wrong time, and erosion of your margins.08/07/2009
Support for off spec materials, formula management, changeovers, parallel operations, lot trace and trace, unlimited unit of measure conversions, is key.
There are a host of enterprise resource planning (ERP) and supply chain management applications available to chemical manufacturersthe challenge is selecting the right one that offers a baseline product with industry-specific functionality. Many ERP applications available today are not industry-specific enough for chemical manufacturers and require major modifications, or, one must select from an industry template that may or may not fit specific needs.
There is also the chance that the software provider may not exist in two to three years (e.g., it may be acquired and the products future may become unknown), or the provider may not be financially secure, adding long-term risk.07/17/2009
Read about the 10 factors that will impact the design, construction and operation of these next-generation pilot plant units.
Learn about new pilot plant development methods.
Understand the role operational guidance plays in successful pilot plant development.06/29/2009
State Based Control is a plant automation control design based on the principle that all process facilities operate in recognized, definable Process States that represent a variety of normal and abnormal conditions of the process. State Based Control, implemented with the latest developments in object-based technologies, delivers direct benefits to its adopters in a variety of Operational Excellence categories. It results in productivity increases, higher asset utilization of both people and process, automated responses and recovery for abnormal conditions and provides an environment for knowledge capture directly into the control design.05/14/2009
Mechanical failure of motors, drives and other vital electromechanical equipment are among the most common reasons for production stoppages. Fortunately, recent advancements in vibration monitoring and data analysis have lead to condition monitoring systems that can accurately detect a problem before failure, thus reducing costly machine shutdowns and maximizing production output. These systems are installed on the monitored equipment and are typically networked back to a central computer for data analysis and alarm annunciation. Because the machines may be in remote locations where network infrastructure is not available, or on moving platforms where hardwired network connectivity is not practical, wireless communications is a networking alternative that offer installation cost savings, quicker deployment and even improved reliability in certain situations.09/30/2008
The performance of wireless networks can change over time due to increased performance demands, changes in the radio frequency (RF) environment and changes in the physical environment. This article will explore the use of a wireless diagnostic OLE for Process Control (OPC) server technology to embed diagnostic information in human machine interfaces (HMIs), thus optimizing industrial wireless network performance.09/30/2008
Learn why project management functionality that is tightly integrated with Enterprise Asset Management (EAM) and Asset Lifecycle Management (ALM) tools is essential to executives of asset-intensive industries. Without such integration, data needed for both strategic decision-making and tactical maintenance of plant assets is at risk.07/01/2008
Plants have traditionally used trays in the distillation columns to produce fuels grade ethanol. Trays of various configurations have been adequate in this service and their technology is well founded. The ever-present desire to reduce the energy needed to produce a gallon of ethanol has opened the doors to structured packings being used in the rectification sections of ethanol distillation columns.04/10/2007
Four dust collection system design improvements that can yield significant annual energy cost savings
The design and location of a dust collection systems hood, ducting, collector and fan can collectively add sufficient static pressure requirements to the point where larger, more expensive to operate motors are necessary to maintain effectiveness. Optimizing these areas can make it possible to use smaller, more energy efficient brake horsepower motors.02/19/2007
This 25-page paper discusses the importance of achieving stable and reproducible operating conditions in batch reactors.12/21/2005
With a number of vendors producing Programmable Automation Controllers that combine the functionality of a PC and reliability of a PLC, PACs today are increasingly being incorporated into control systems. This white paper explores the origins of the PAC, how PACs differ from PLCs and PCs, and the future direction of industrial control with PACs.09/14/2005
This 37-page paper reviews the basic techniques for process modelling and control of batch reaction systems under steady state and dynamic conditions.07/25/2005
This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers. Download this document to learn which technologies are out there that can make this job easier.01/03/2005
Many catalytic reactions rely on platinum, palladium and other precious metal catalysts. When the activity of the catalyst declines to the point that it must be replaced, the used catalyst can be sent to a refiner to recover precious metal. This 8-page paper discusses the variouis factors that should be considered when using a refiner.10/15/2004
This paper covers key aspects for modeling and design of batch reactors, including: heat-up and cool-down performance, sensitivity analysis for reactor parameters, boil-up rate predictions, thermal stability under exothermic conditions, control system design and loop tuning parameters, condenser rating, and process emissions predictions.10/15/2004
This 33-page paper discusses the wide variety of factors that can cause fouling and the impact of this fouling on the performance of a distillation column. It then provides details on practical methods for mitigating fouling, including equipment design, surface treatment, and use of additives.10/15/2004