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CHE_0618

June 2018

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C2H2 hydrogenation Last month, Clariant (Munich, Germany; www.clariant.com) launched OleMax…
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Featured
Figure 1. An inside view of a stirred-tank photochemical reactor (see also the cover photo for an impression of the size) Ekato/Peschl
A general overview of industrial photochemistry and the design of large-scale stirred-tank photochemical reactors Photochemical processes complement or may even…
Figure 4. The photograph shows the exterior of an elevated-drum steam generator for large capacity Cleaver Brooks
Understanding boiler performance calculations can allow engineers to improve the operation of their facility’s steam system and better engage with…
Figure 1. Lubrizol’s highly reactive poly-isobutylene production unit from Jacobs’ EPC project site in Deer Park, Texas Jacobs
Plug-and-produce concepts for automating modular skids may solve integration challenges for modular construction projects Modular construction — both of facilities…
logistics
Digitalization, sustainability, security and safety are at the forefront of innovations in the logistics and supply-chain sectors Ensuring that chemical…
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Photochemical Processes in Stirred Tank Reactors
Performance Prediction for Industrial Boilers
Simplifying Integration of Modular Construction Projects
Transformations in Transit: Chemical Logistics Get Smarter
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John Crane acquires German filtration specialist Seebach June 20, 2018
 Tata Chemicals completes silica business acquisition June 20, 2018
 Sandvik Materials Technology to divest stainless wire business June 20, 2018
 KBR executing FEED work for Arkema's sulfur derivatives expansion June 20, 2018
 Covestro to employ ODC technology at new chlorine plant in Tarragona June 20, 2018
 Indorama to acquire PET manufacturing assets in Egypt June 20, 2018
 Jacobs wins engineering services contract for Yasref petroleum refinery June 20, 2018
 Toray Plastics completes expansion of Virginia facility June 20, 2018
 Clariant opens two new facilities in China for additive production June 20, 2018
 AkzoNobel to demonstrate new ethylene amines process technology in Sweden June 15, 2018
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PET recycling Last month, Unilever N.V. (Rotterdam, the Netherlands.; www.unilever.com)… GOLD
Upcoming Events
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June 25
EVENT
27th World Gas Conference
 
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September 18
EVENT
47TH TURBOMACHINERY AND 34TH PUMP SYMPOSIA
 
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September 29
EVENT
WEFTEC
The Water Environment Federation’s Annual Technical Exhibition and Conference, WEFTEC®,… 
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October 16
EVENT
Hose & Coupling World Expo
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Worth A Second Look
CSTR Design for Reversible Reactions
09/01/2009
548726a59457d-0909_KT_f1
Multiple CSTRs (continuous stirred-tank reactors) are advantageous in situations where the reaction is slow; two immiscible liquids are present and require higher agitation rates; or viscous liquids are present that require high agitation rates. Unlike in plugflow reactors, agitation is easily available in CSTRs. In this article, batch and plugflow reactors are analyzed and compared to multiple CSTRs. The number of reactors required in a CSTR system is based on the conversion for each stage. When the final stage obtains the fraction of unconverted reactant that is equal to the desired final value from the plug-flow case, the CSTR system is complete. The volumetric efficiency of multiple CSTRs is expressed as a function of conversion per stage and gives the total conversion required.
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Enexio Water Technologies
Free-standing separators that are modular and flexible
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Electrical thermometers for very cold conditions
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Self-cleaning inserts for wastewater tanks
Ross Systems and Controls
Mixer panels with additional UL and NFPA certifications
BJM Pumps
A new addition to this line of submersible sump pumps
QED Environmental Systems
High-accuracy methane and oxygen readings for biomethane applications
GEA Group
A flowmeter for sensitive production processes
Phoenix Contact
Ethernet patch panels for fast connection and safe supply
Eriez Manufacturing
Removing fine iron contaminants with magnetic filters
Enmet
Monitor traces of benzene with this GC unit
HMS Industrial Networks
Connect devices wirelessly with these new WLAN access points
Dantec
The launch of an online configurator for composite hoses
R. Stahl
Lights with reduced blue content for special applications
Siemens
Dual sensor operation with four-wire sensor connection
Sealevel Systems
A server for I/O expansion and data acquisition
KEM Küppers Elektromechanik
The first H2 flowmeter certified for dispensing applications
ATC Diversified Electronics
This relay ends costly restarts following undervoltage trips
UV chromatography monitoring for large-scale purification
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