Detailed Process Description

This creates a far more compelling argument than a detailed process description or a theoretical discourse on why accidents happen— both of which may be interesting in themselves, but neither of which appeals directly to the listener s concerns. 

The coverage in this chapter is compact—no detailed process descriptions or diagrams. Resins and fibers aren t really petrochemicals anyway. They re just a good climax to the petrochemical story. 

Most of the test work has been done with two product oils from the Albany, Oregon Biomass Liquefaction Experimental Facility. Both oils were produced In an alkali-catalyzed, reducing gas environment with long residence times and high pressure (3000 psig). The TR12 represents a PERC-type recycle oil slurry process, and TR7 represents the LBL-type aqueous slurry single pass process. Detailed process descriptions (U) can be found elsewhere. 

Daniels and Lenney [32] give a detailed process description of a two-reactor CSTR system used to produce ethylene-vinyl acetate (EVA) copolymer latexes. A seed latex is fed to the first reactor. Korte and Silling [33] employed a tube-CSTR system for producing acrylonitrile-vinylacetate-acetate-styrene copolymers. The PFT generated the seed for the CSTR which was also fed with a stream which by-passed the tube. 

Process information details Process description with well-defined scope and boundary and supported by relevant drawings is necessary to acquire the process parameters. Special/specific conditions for the process also need to be described. 

The first process is a one-column apparatus. It can be viewed as classical doublecolumn system, the low-pressure column of which is shrunk to a vessel with an evaporator inside and no separation stages above. A detailed process description is given in [2.24]. This apparatus is typically applied to produce nitrogen with an oxygen concentration between 1-100 ppm and pressures up to 10 bar. The process is designed to optimize investment cost and is suitable for small-scale consumers with a nitrogen demand of up to about 7000 m h . ... 

The rest of this chapter provides a brief overview of the processes shown or mentioned above. The chapters that follow provide detailed process descriptions, with emphasis on recent developments. General information on refining technology can be found in the excellent books by E.I. Shaheen, and W.L. Leffler, and in a manual published by the U.S. Occupational Safety and Health Administration. " Each year. Hydrocarbon Processing compiles a widely read refining process handbook, which gives descriptions of about 120 licensed processes offered by engineering contractors, oil companies, and of course process licensors. 

Usually, catalytic cracking units are operated close to the constraint boundaries, which define an optimum for the oil feed throughput. The process is running at maximum throughput, hence some valves ate fully open. However, there are still some measured variables and correcting variables that have to be paired and the following section will discuss this in more detail. For a detailed process description and discussion of the operation of the process the reader is referred to McFarlane et al. (1993). 

The detailed process description of a supply chain in the cycle view is useful when considering operational decisions because it clearly specifies the roles of each member of the supply chain. The cycle view is used by enterprise resource planning (ERP) systems to support supply chain operations. 

Detailed process description and overview of process chemistry relevant to modeling the reactor... 

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