Residual fractions

Residues (petroleum), heavy coker and light vacuum Residues (petroleum), catalytic reformer fractionator Residues (petroleum), hydrodesulphurized atmospheric tower Residues (petroleum), topping plant, low sulphur Residues (petroleum), heavy coker gas oil and vacuum gas oil Residues (petroleum), thermal cracked... 

Residues (petroleum), catalytic reformer fractionator residue distillation... 

If the order of q(s) is higher, we need first carry out "long division" until we are left with a partial fraction "residue." Thus the coefficients ai are also called residues. We then expand this... 

Solvent deasphalting is carried out primarily to recover lube or catalytic cracking feedstocks from asphaltic residuals, with asphalt as a byproduct. Propane deasphalting is the predominant technique. The vacuum fractionation residual is mixed in a fixed proportion with a solvent in which asphalt is not soluble. The solvent is recovered from the oil via steam stripping and fractionation, and is reused. The asphalt produced by this method is normally blended into fuel oil or other asphaltic residuals. 

Calculate the fractional residual capacity at the break point for the fixed-bed of Example 11.2. The fractional residual capacity of the adsorption zone can be approximated as 0.5. 

Since the fractional residual capacity of the adsorption zone is 0.5 and the bed height is 0.25 m, the residual capacity is given as (0.196x0.5)... 

Sulfur, carbon and hydrogen stable isotope ratios of pyrite, kerogens, and bitumens of two high-sulfur Monterey formation samples from the onshore Santa Maria Basin in California were determined. Kerogens from these were pyrolyzed at 300°C for periods of 2, 10 and 100 hours in closed systems and the yields and isotopic compositions of S-containing fractions (residual kerogens, bitumens and hydrogen sulfide) were determined. 

A typical mass loss curve for the three heating rates is shown in Figure 2. The fractional residual (char) mass at 600°C is given for each species in Table I. Considerable data are available from the 1iterature particularly from thermogravimetry studies, on the influence of specimen and heating parameters on mass loss characteristics. 

Fig. 11.11 Structure of a fraction (residues 178-423) of the ligand-binding domain of the human retinoic acid receptor, RARy bound to aittians retinoic acid. The Igand, alttrans retinoic acid, is shown as a sdck-and-ball structure. The structure is typical of the ligandbinding domains of nuclear receptors in general. The 2.0 A crystal structure reveals the ligandbinding interactions. The overall fold of the binding pocket is similar to that of the human RXRa LBD. The ligandbinding pockets of the o,p,y- isoforms of RARs differ only in three residues. These three residues seem to be responsible for the differences between the three RAR subtypes. (Reproduced with permission of Professor D. Moras and Nature from the data in Fig. 1 of ref. 38. and the corresponding data available in protein databanks. See also ref. 39.)...

Since 2002 a European consortium has dealt with the transfer of a pilot-scale Halo-clean rotary kiln system to technical scale (Figure 20.2). By scaling up the pilot-scale unit with a throughput of about 40 kg/h, a technical scale with a feed of up to 3000 t/a will be realized. The Haloclean process, combined with its post-treatment facilities transforms electronic scrap into three typical fractions, residues containing metals, precious metals, carbon, glass and inerts, as well as phenolic-based oils and HBr [11, 51, 56-59]. 

Amino acid Unfractionated SCM protein Pi (5 % ethanol precipitate) Pj (12.5 % ethanol precipitate) S2 (unprecipitated Insoluble fraction) residue ... 

El-LE fraction "Oxidizable organic fraction Acid reducible fraction Residual fraction ... 

Coal-tar fraction. Residue of crude petroleum oil unspecified composition. Unspecified composition, but probably a high boiling fraction of coal tar. 

SEP Leaching Reagents Extractable Fractions (Residual Fractions Are Not Included)... 

Days of Operation Hydro- crackate Naphtha Jet Pre- Acid DFM Pre- Acid Fractionation Residue... 

Permian t co3 Mole Fraction Residue CHj Mole Fraction Permeant Production Rate (SCFH) Overall Siage-Cul < > CO, Recovery (%) CH, Recovery < >... 

Neon is a special case in that °Ne/ Ne and Ne/ Ne ratios in the fractionated residual atmosphere are substantially higher than at present, and later addition of outgassed solar Ne elevates them still more (Fig. 11). Here an episode of solar EUV energy deposition driving hydrodynamic escape of Ne at some time after GI fractionation... 

Current results of this exercise, using the Xe component compositions listed in Table 1, are reviewed in Pepin (2000). Applied to Earth, a modeling procedure involving derivation of fractionation relationships between nonradiogenic terrestrial and meteoritic Xe compositions simultaneously identifies a composition named U-Xe as primordial Xe, and establishes the presence of an atmospheric Xe component due principally to fission of extinct as noted earlier in this chapter. Hydrodynamic escape of U-Xe leaves its fractionated residue on Earth. Evolution of atmospheric Xe from this early composition to its present isotopic state by subsequent degassing of fission and radiogenic... 

Component profiles of the saturated and undersaturated oils (e.g. Fig. 13) do not show evidence of extensive evaporative fractionation. Residual oils formed by this process may be depleted in lower molecular weight components and deviate from the expected exponential distribution (Meul-broek et al. 1998 Losh et al. 2002 Thompson... 

Mirex is rapidly adsorbed onto various organic particles in the water column, including algae, and eventually is removed to the sediments. Not surprisingly, mirex has a long half-life in terrestrial and aquatic sediments large fractional residues were detected at... 

Fruit and variety Waste component 0.05N NaOH Extract (pectin containing) 1 M H SO Hydrolysate Cellulosic fraction Residue after 72% H.SO solublization Total... 

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