How to avoid the solidification of crude ethyl ester (i.e. stick crude EE lipid) after neutralization take place during the trans-esterification?

Dear fellows: I am currently working on trans-esterification of crude algal oil turned into crude ethyl ester. In the processing of crude lipid (30kg) was added into the reactor with 60kg or...

02 March 2019 6,438 2 View

Is there any protocol method for reducing the presence of phthalates (i.e. DEHP, DBP, DIBP) in the crude lipid extracted from Nannochloropsis sp?

Dear members, I would like to know if there is someone who has previously worked on reduction of phthalates during the extraction of crude lipid from Nannochloropsis Sp. The aim is to get purity...

05 June 2018 8,130 0 View

What is the chemical can be used to remove sulfuric acid, glycerol and hydrophobilc materials during the transesterification of algae powder?

Dear members, Part of the project is removal impurities during the transesterification reaction took place at 70 C for 2hours. After transesterification, materials are transferred into funnel...

10 November 2017 8,168 0 View

What type of catalyst would be useful to fulfil the process requirement to produce high purify of EPA from microalgae?

Currently I am working to maximize the yield and purify of EPA from Microalgae. At the same time, I am curious to understand the process efficient and cost-effective of the catalyst to...

08 September 2017 207 0 View

How can I get vapor into liquid from the condenser?

Is there anyone who could help for the problem I am working in my research. Actually, I am working on hydrocracking of methyl esters, especially methyl oleate (C18:1) to convert into C8, C9 and...

06 July 2015 7,908 4 View

What happens with changes of temperature in reactors?

What is happened when reactor (trickle bed) is warm up for 4 hours to reach 150C, then 60mL/min of liquid oil is allowed to pass through into the reactor, at the same time hydrogen gas pressure is...

05 June 2015 1,926 6 View

How many hours needed for extracting protein from dry defatted algal powder?

I am current working on the project related to Nannochloropsis EPA for production of protein. By using aqueous solution at low temperature and pH lower than 5 it will increasing extraction...

01 January 1970 2,135 5 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View