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Benefits and Drawbacks

The lower temperature results in an increase of overall process efficiency, since the heat supplied is better exploited. It is foreseen that the global process efficiency should increase from the 65-80% of today s technology up to 85% and more for all the plant sizes. [Pg.121]

Reduction of reaction temperature means that the heat duty requirement is lower than for the traditional process. The heat flux from the external source to the catalytic bed should be about 30-40 kW instead of 80 kW m and more of the traditional process.Consequently, a smaller amount of methane [Pg.121]

Membrane integration into the reaction environment ensures a first substantial hydrogen separation step (up to 90% of the hydrogen produced can be removed) as for CO2 separation, because of the higher carbon dioxide partial pressure in the reformer outlet stream, due to the hydrogen removal, physical separation methods could be used to separate CO2 rather than the chemical adsorption in mono-diethanol ammine (MDEA). [Pg.122]

Concerning with the two configurations proposed, Table 13.2 summarizes benefits and drawbacks of both the architectures. Globally  [Pg.122]

At the same operating conditions, IMR leads to better performance, since an integrated membrane reactor is equivalent to an infinite series of reactor + separator modules [Pg.122]


A P2 opportunity needs to be looked at every time when dealing with a pollution problem, but only a detailed analysis and comparison to status quo and financial benefits and drawbacks will enable an optimum solution to a problem. In this regard, one of the objectives of this chapter is to wade through the P2-propaganda, and provide some simple guidelines on how to properly apply the principles to air pollution problems. [Pg.349]

Eor a long time there have been discussions about which type of sorbent is the best for SEC separations in various mobile phases. In principle, organic (copolymer) and inorganic packings can be used. Each type of packing has its benefits and drawbacks. Table 9.3 summarizes major sorbent properties and reveals some interesting aspects of SEC separations and its requirements on packings. [Pg.270]

Less-than-carload-lol rates are very higli. Therefore, the distance that the material must be shipped should be kept to a minimum. Each of the four major transportation methods in use today (railroad freight, trucking, water transport, and air travel) has its benefits and drawbacks. [Pg.166]

Benefits and drawbacks of using CCP-based systems at the level of a supply chain... [Pg.494]

What benefits and drawbacks to these problems can one expect from the use of cyclic voltammetry instead of RDEV They are related. In a general case, the application of cyclic voltammetry will be more complicated, because playing with the scan rate, one can make the diffusion layer penetrate the film or remain outside, as is the case with RDEV. We have already seen a fruitful application of the first of these possibilities in the use of cyclic voltammetry to the characterization of electron hopping transport within the redox films (Section 4.3.4). In the second situation, cyclic voltammetry may replace RDEV in a manner similar to what has been seen in Section 4.3.2 Each time a term (1 — ///a) is encountered in the analysis, it suffices to replace it by... [Pg.290]

Table 1. Microreactor Material Benefits and Drawbacks (Adapted from refs 17 and 18)... Table 1. Microreactor Material Benefits and Drawbacks (Adapted from refs 17 and 18)...
Near-Infrared Spectroscopy (NIR) as a PAT Tool in the Chemical Industry 501 Table 15.1 Benefits and drawbacks of NIR... [Pg.501]

The substrates used for DNA immobihsation can be, at the level of the AFM analysis, either rigid (e.g., glass) or flexible (e.g., polymers). An atomically flat surface is preferable, but sometimes this is difficult to achieve. The DNA immobilisation mechanisms can be (i) physio-sorption, (ii) charge complementarity and (iii) covalent binding. Depending on the actual objective of the AFM study, each combination of the surface-immobilisation mechanism has both benefits and drawbacks. [Pg.124]

The discussion of potential benefits and drawbacks of using high-k dielectrics as a gate oxide for power SiC UMOS transistors has been made in several publications [8, 10, 11]. A comparative analysis of different insulating materials suitable as gate... [Pg.158]

In this review, a critical overview of artificial tongue applications over the last decade is outlined. In particular, the focus is centered on the chemometric techniques, which allow the extraction of valuable information from nonspecific data. The basic steps of signal processing and pattern recognition are discussed and the principal chemometric techniques are described in detail, highlighting benefits and drawbacks of each one. Furthermore, some novel methods recently introduced and particularly suitable for artificial tongue data are presented. [Pg.58]

A comparison of the benefits and drawbacks of common numerical solution techniques for complex, nonlinear partial differential equation models is given in Table II. Note that it is common and in some cases necessary to use a combination of the techniques in the different dimensions of the model. [Pg.129]

Look at each of these choices carefully. Then, consider the benefits and drawbacks of each before you make your final decision. [Pg.90]

It is therefore clear that consumers need to be educated about the use of such medications and reminded that OTC products can produce substantial benefits and adverse effects. All health care providers, including physical therapists and occupational therapists, need to be in a position to help educate and counsel their patients about the benefits and drawbacks of such medications. While therapists should not directly prescribe or administer OTC products, therapists can provide information about the proper use and potential benefits of these medications. [Pg.8]

To understand the benefits and drawbacks of opioid drugs, one needs to understand their primary effects on the body specifically, how they function as pain relievers. In the broadest sense, there are two types of pain— physical and emotional. Physical pain, while unpleasant, is necessary for survival. It serves as notification of the presence of injury or disease, which in turn prompts a person to take appropriate, possibly even life-saving action. Half of all individuals who seek medical attention report pain as their primary complaint. [Pg.308]

In comparison to caffeine, pemoline, and methylphenidate, amphetamine appears to offer a more consistent and prolonged alerting effect (100,192), and both the benefits and drawbacks are fairly well known because amphetamines have a long history of use in real-world settings, particularly in military aviation. It has been concluded that to date, the most promising stimulants to counteract performance decrements attributed to aircrew sustained operations are the amphetamines (191, p. 269). Furthermore, Comum et al. (193) have stated that the proper administration of amphetamines to severely fatigued personnel can make the difference between a mission that ends safely and one that ends in disaster. [Pg.422]

By and large, ejectors and motionless mixers have similar mass transfer performance at a given gas-to-liquid flow ratio and energy input. However, ejectors have a number of benefits and drawbacks compared to a motionless mixer. On the positive side, the ejector suction means that a pressurized gas supply is not required. The unrestricted mixing tube means that solid formation due to reaction is not problematic. Against this, the operation is sensitive to changes in the gas-liquid flow ratio and diameter/length ratio. Gas-to-liquid flow ratios are also more limited in ejectors. [Pg.254]

The public authorities stipulate national regulations setting protection objectives and means, and controlling their implementation by the private sector. Governments decide on the criteria to apply for risk assessment and determine which are the expected benefits and drawbacks of the protection measures. The operators of the CII are responsible and accountable by the government for the implementation of the protection measures. [Pg.69]

Each of these appraisal schemes has both benefits and drawbacks and these are summarised in Table A4 [A-10]. Which appraisal scheme that is used is usually decided at the highest level in the human resources department of the bigger companies. In small businesses the choice may will be up to the manager concerned whether they wish to operate via traditional command and control hierarchy or whether they are customer focused with members of staff self empowered. [Pg.43]

A new, so-called third generation of antipsychotics has recently been introduced, and at this time one drug, aripiprazole, is available and others are in the late stages of development. This new class of medications has a novel mechanism of action that, at least in theory, should deal with several of the limitations of other atypicals. It will be remembered that all antipsychotics preceding this class had the ability to block the dopamine receptor, and they did so in all four dopamine pathways. As discussed, this had both benefits and drawbacks dopamine blockade resulted in the improvement of positive symptoms (mesolimbic pathway) but had a limited benefit in negative symptom reduction (mesocortical... [Pg.124]

Numerous in vitro and/or in situ models have been developed to investigate drug metabolism. In order of decreasing complexity, they are the isolated perfused liver, isolated liver slices, hepatocytes in coculture with epithelial cells or bacteria, hepa-tocytes in suspension and in primary culture, subcellular hepatic microsomal S9 fractions and high-speed pellet microsomes. The field of metabolism is immense and will not be covered in depth here. However, one should have a basic understanding of the benefits and drawbacks of each one of these methods. ... [Pg.350]

The justification to senior management that LIMS is a cost-effective solution. These Business Requirements will be the basis for applying for funding for purchase and implementation of the application. The owner of LIMS must understand the benefits and drawbacks of implementing LIMS prior to purchase the requirements definition is the only time in the project that it can be achieved at a reasonable cost. [Pg.518]


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