scholarly journals Assessing the Impact of a Vinasse Pilot Plant Scale-Up on the Key Processes of the Ethanol Supply Chain

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Rocio Ramos-Hernández ◽  
Dulce Rocio Mota-López ◽  
Cuauhtémoc Sánchez-Ramírez ◽  
Giner Alor-Hernández ◽  
Jorge Luis García-Alcaraz ◽  
...  

One of the byproducts generated in the cane sugar production is molasses, which is used for ethanol distillation. However, one of the problems of distilleries is vinasse. Vinasse is highly water pollutant and is dumped untreated in lakes or rivers and damages the environment. The company FALA developed a pilot plant that uses vinasse to produce a type of livestock feed called MD60. In this paper, the impact of the pilot plant’s scale-up in the key processes of the company’s supply chain is analyzed. With the help of a sensitivity analysis, this study finds the values that would allow the company to improve its order fulfillment indicator and to increase profits, assuming an expected demand by the introduction of this new product into the market. The results show that (1) the pilot plant fulfills 32% of the orders, (2) according to the current vinasse storage capacity, it is possible to fulfill up to 77% of the orders by scaling up the pilot plant, (3) to satisfy 100% of the orders, it is necessary to use all the vinasse generated, and (4) the highest profit is reached by processing all the vinasse and by considering the upper sale price.

1992 ◽  
Vol 25 (10) ◽  
pp. 339-350 ◽  
Author(s):  
D. M. Meadows ◽  
S. Wadley ◽  
C. A. Buckley

The recovery of brine from the regeneration effluent from cane sugar Liquor decolourising ion exchange resin by means of nano filtration has been investigated on a Laboratory and pilot plant scale. This effluent is produced at 80°C and contains up to 110 g/ℓ of sodium chloride and up to 6 g/ℓ (as total carbon) of organic matter. The SelRO MPT-30 membrane was selected for the pilot plant trials, which were carried out at 3 MPa and 45 °C or 60 °C. Point retention values ranged from (-2) to 15 % for sodium chloride and from 71 to 93 % for total carbon. Final water recoveries between 69 and 83 % were investigated. The sodium chloride recovery ranged from 64 to 81 % and the total carbon removal ranged from 79 to 89 %. Based on experiments using the salt-rich fraction of the effluent and a water balance over the regeneration system, it was calculated that a 30 % reduction in effluent volume and a 60 % reduction in salt consumption could be achieved. In the tests carried out so far, the use of the recovered brine in the regeneration of pilot resin columns did not lower the decolourising capacity of the resin.


2016 ◽  
Vol 299 ◽  
pp. 420-430 ◽  
Author(s):  
Ma Teresa Fernández-Ponce ◽  
Behnaz Razi Parjikolaei ◽  
Hamed Nasri Lari ◽  
Lourdes Casas ◽  
Casimiro Mantell ◽  
...  

2021 ◽  
Vol 30 ◽  
pp. 100730
Author(s):  
Isaac Benito-González ◽  
Gülden Göksen ◽  
Zaida Pérez-Bassart ◽  
Amparo López-Rubio ◽  
Rafael Sánchez ◽  
...  

2014 ◽  
Vol 997 ◽  
pp. 610-613
Author(s):  
Shao Long Wang ◽  
Ting Lei ◽  
Zhe Shi ◽  
Ya Bin Liu ◽  
Fan Wang

Mg2+ removal technique in Zn hydrometallurgy was investigated in a single-factor-based test to examine the impact of NaF dose, pH, reactive duration and the reactive temperature on NaF-based Mg removal and the optimal process condition for NaF-based Mg removal was obtained as below: at the actual NaF dose 0.8~1.0 times as much as the theoretical dose, pH 4.0~4.5, reactive duration of 60~75 mins and the reactive temperature 60~75 °C, the agitation rpm of 400. The up to 85.5% of all Mg can be removed, which can be referenced in any experiment at a pilot-plant scale.


2011 ◽  
Vol 236-238 ◽  
pp. 2299-2302
Author(s):  
Yan Hong Wang ◽  
He Zhao ◽  
Y.D. Huang

In this paper, the preparation of 2, 6-diamino-3, 5-dinitropyridine (DADNP) were systematically investigated. The optimal method was found. The key parameters have been systematically studied, such as the synthesis route, temperature, solvent, time, the reactant ratio, and the purification route. The optimal route was confirmed and would have an important reference for pilot plant scale-up.


Sign in / Sign up

Export Citation Format

Share Document