This white paper discusses highly acidic chemical process slurries and the use of continuous vacuum filtration technologies for filtration, cake washing and drying.
First, the basics and benefits of continuous vacuum filtration technologies are reviewed followed by case-studies. In this first process, the precipitated solids are in sulfuric acid slurry. The challenge is to process 2200 kg/hour of dry solids for filtration, counter-current washing and drying in a contained environment.
In this second process, the objective is to process precipitated solids in an hydrochloric acid slurry. The white paper concludes with a framework for vacuum technology selection and how this can be applied to other toxic and difficult chemical process filtrations.10/18/2016
Take a closer look into how technological improvements over recent years have catapulted ultrasonic flowmeters into the forefront of measurementation in the chemical industry.
Download the whitepaper now.03/15/2016
The safety performance of industrial piping material cannot be overstated—these environments have hundreds, often thousands, of lives at stake. Among the many piping choices, the superior strength, performance and safety of CPVC make it an ideal system for industrial process water applications.
Download the whitepaper now.02/24/2015
Research Paper: Investigating the Relationship between Gypsum Purity and Hydrogen Sulfide Production under Anaerobic Conditions
Calcium Sulfate (CaSO4) more commonly known as gypsum is a naturally occurring white crystalline mineral that has many different uses and applications. Gypsum in its hydrated form (CaSO4•2H2O) is used in the construction industry for fire resistance in buildings. Outside of the construction industry, gypsum is used in the food and fertilizer industry for calcium and sulfate fortification respectively. When gypsum is no longer usable, it is deposited in construction and demolition(C&D) landfills where anaerobic (low oxygen) conditions and the presence of sulfate-reducing bacteria promote the decomposition of wallboard/gypsum into hydrogen sulfide gas (H2S). Due to local and state regulations on odor control, these C&D sites monitor their fill for hydrogen sulfide gas. This paper will couple two methods of analysis to observe the relationship between the purity of gypsum (calcium sulfate dihydrate) and hydrogen sulfide concentration as a sample is fermented by sulfate-reducing agents (e.g. bacteria). The scope of this research may be beneficial for industrial hygienists concerned with C&D landfill H2S levels or for incoming gypsum processing plants who suspect poor quality gypsum.09/12/2014
Energy consumption remains one of the largest controllable costs in oil refineries. Heat exchanger fouling can have a significant impact on energy efficiency and production loss. Asphaltene Precipitation is caused when refiners blend incompatible crudes. This is a major source of fouling and leads to performance limitations within days. Heat exchanger fouling is a major challenge for refinery operations. With the increase in crude blending from opportunity crudes such as tight oil, the traditional “manual” monitoring approach may no longer be effective. This White Paper discusses how on-line monitoring and analysis can enable refineries to:
- Better Understand Accelerated Fouling Due to Crude Incompatibilities
- Learn How to Use Online Monitoring to Detect Fouling
- Identify Which Tube Bundles Require Cleaning
Patching process control system software to remove security vulnerabilities is fraught with risk. System issues can be the result of installing a patch, but a system is also vulnerable without patching. Fortunately, virtual patching can improve the process and raise the system’s security at the same time.09/21/2012
By understanding the key functions and architecture of a process-oriented, formula based ERP application, you will have a better foundation for choosing a solution that best suits your company and type of manufacturing.
This practical guide and checklist ties the unique operations of chemical manufacturers to specific ERP functionality and architecture. Topics include:
- Formula Specifications
- Variability and Quality
- Product Accountability and Costing
- IT Maintenance
Don't settle for a "one size fits all" ERP solution. With the "right fit" ERP solution, you will be able to streamline operations, reduce costs and scale production, while complying with federal regulations -- all with minimum customization.
A large number of analytical and highly empirical correlations including monograms reflecting changing standards have been or are being proposed separately for gas and dust explosion relief venting. This white paper provides a generalized formula that is applicable to both gas and dust deflagrations including subsonic and sonic pressure relief conditions and is consistent with available experimental data and industry experience. Application of the model is illustrated for dust explosions. Download now.05/06/2011
Chemical Processing Special Report: Beyond Condition Monitoring: Prevent Failures through Condition Management
For years chemicals makers have tracked the health of key equipment yet they still grapple with unplanned outages that can significantly impact financial performance through lost production and extra repair costs. In this Special Report, we'll explore underlying condition monitoring challenges and introduce the concept of condition management -- an enhanced approach that helps companies reap the full benefit from their condition monitoring investments; we'll also discuss how CMMS tools can help to provide a clear understanding of maintenance operations performance as well as provide some guidance on what you can expect from a CMMS vendor. Lastly, listen to the lively discussion between Chemical Processing's Senior Digital Editor,Traci Purdum, and Edgewater Fullscope's Senior Vice President, Russell Smith, as they converse on how ERP can help manage the supply chain.12/16/2010
Over the past 10 years, manufacturers have faced an increasing number of compliance and product quality challenges, ranging from new regulations to product recalls. This White Paper details the business case for an integrated and comprehensive view of product and REACH compliance processes. If "done right," it is expected that these improvements to the compliance process can not only provide time and cost savings but also open doors to new markets, lower risks associated with complex supply chains, protect the reputation of the brand, and create a foundation for environmental sustainability.12/14/2010
The pressure of international competition is being felt in the field of plant engineering with a demand for shorter development times and reduced project costs. A consistent and efficient approach to plant design can help to dramatically save both time and money. Download this white paper to learn more.08/18/2010
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
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
This 18-page white paper explores a new option flameless venting which has recently been developed for dust explosions and is being actively marketed as an alternative to vent ducting.11/03/2008
This 30-page paper discusses the basic design, construction and performance of shell and tube heat exchangers.10/22/2008
This paper discusses the problem of membrane fouling by antifoams, its leading causes and describes the development of a nonfouling antifoam for processes that use ultrafiltration downstream.09/22/2006
The high prices for oil and gas have spotlighted other sources of fuel for internal combustion engines. Biofuel, a fuel derived from ethanol, and biodiesel fuel, a dieselequivalent derived from biological sources, are two possible substitutes for petrochemical fuel.08/29/2006
This 25-page paper discusses the importance of achieving stable and reproducible operating conditions in batch reactors.12/21/2005
This 25-page paper discusses the basic design, construction and performance of shell and tube heat exchangers.10/25/2005