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Gevo Inc.

2.510 Posts
Pagina: «« 1 ... 83 84 85 86 87 ... 126 »» | Laatste | Omlaag ↓
  1. [verwijderd] 15 juni 2016 14:06
    [0017] The highly selective production of isobutylene from increased concentrations of ethanol in the feed stream is described in Examples 1B-1E. Notably, isobutylene yields of nearly 70% are obtained from the direct conversion of ethanol at molar concentrations in the feed stream exceeding 14%. And, as shown in Examples 1B- 1D, 1G, and 1I, the process of the present application also generates more of the higher-value co-products as compared to previously described processes. Specifically, valuable co-products such as propylene, phenol, meta-cresol and 3,5- xylenol are generated in higher quantities than seen with previously described ethanol to isobutylene conversion methods. Accordingly, the method described herein enables a process that generates isobutylene from high concentrations of ethanol and concomitantly results in the production of higher-value co-products.

    [0018] Various aspects of the present application stems from the inventors’ unexpected finding that the highly selective conversion of ethanol to high purity isobutylene can be achieved at molar concentrations of ethanol in the feed stream equal to or exceeding 14% at steam to carbon (S/C) ratios of 0.05 to 3.0 utilizing a ZnxZryOz mixed oxide catalyst prepared by a co-precipitation method for the selective conversion of ethanol to isobutylene. Indeed, the inventors’ have observed isobutylene yields of nearly 70% of the maximum theoretical at ethanol feed concentrations exceeding those tested by Liu et al, and with isobutylene purities meeting or exceeding the requirements necessary for high purity isobutylene (>99.75%). In addition, levels of co-products (e.g., propylene, phenols, methane, etc.) relative to isobutylene are reduced relative to ZnxZryOz mixed oxide catalysts prepared via the hard template, impregnation, or inverse co-precipitation techniques.
  2. [verwijderd] 16 juni 2016 20:28
    quote:

    greenstocks schreef op 16 juni 2016 17:38:

    Let op, als ze een contract tekenen houdt het niet meer op.

    Patent al rond?
    Gevo heeft iets van 450 patenten, niet allemaal even relevant natuurlijk. Het enige probleem is uit de weg, dat was Butamax, maar dat is nu een partner. Google maar op gevo butamax agreement.

    Patent voor ETO technologie is status 'aangevraagd'. Kan nog wel een jaar duren.
  3. [verwijderd] 17 juni 2016 08:33
    quote:

    doewap schreef op 16 juni 2016 20:28:

    [...]

    Gevo heeft iets van 450 patenten, niet allemaal even relevant natuurlijk. Het enige probleem is uit de weg, dat was Butamax, maar dat is nu een partner. Google maar op gevo butamax agreement.

    Patent voor ETO technologie is status 'aangevraagd'. Kan nog wel een jaar duren.
    Zo te lezen heb je er redelijk verstand van.. wat is een reële koers op dit moment?

    Ruim een dollar... of is het nu moeilijk te zeggen omdat deze van 300$ 2012 komt..

    Ik zelf denk dat langzaam en stabiel zullen stijgen..
  4. I Love Melbourne 17 juni 2016 11:22
    Onderstaande tekst kwam ik op een beleggingsforum van Gevo tegen. In onderstaande tekst wordt het aandeel Gevo niet genoemd, maar ik vond het toch zeer de moeite waard om te lezen. Als beginnend belegger weet ik dat er geregeld list en bedrog voorkomt. Ik weet niet in hoeverre deze tactiek wordt toegepast, maar dit was voor mij toch wel een eye-opener. Denk ook zeker dat dit kan gebeuren bij een bedrijf zoals Gevo….

    Hopelijk wordt deze post niet als vervuiling van het Gevo forum gezien.

    Investment Consequences of Naked Shorting

    Only a motivated enforcement agency with subpoena power and an accompanying powerful enforcement infrastructure can prove that naked shorting is at the heart of an extensive stock manipulation scheme. However, I believe that the observational evidence is overwhelming that naked shorting practices are widely used to manipulate the stock prices of emerging biotechnology companies as well as many other small and large companies. Unfortunately, naked shorting is an investment variable that investors must understand if they are going to make investments in the emerging biotechnology space in particular and the equity markets in general.

    Investors may decide that they just won’t invest in companies that are most subject to naked shorting, but this would eliminate many small emerging growth stocks with exciting potential. For those like me who are attracted by potentially breakthrough technologies, you will inevitably get caught up in a manipulation that leads to a suddenly plunging stock price of a company in which you are invested. Invariably the scheme starts with and is perpetuated by a flurry of blogs, tweets and message board comments which proclaim that the technology is worthless; management is a band of liars and thieves; and people with a positive view on the Company are being paid by the Company. Then come the lawsuits against the Company and management by the usual group of class action law firms. Each year this scenario is played out hundreds of times.

    This carefully scripted and long used manipulation scheme by short selling hedge funds is all meant to shake and then break investors’ confidence. The result is usually a painful, steady, day by day erosion of the stock price due to naked shorting practices. Stocks can be cut in half by naked shorting on the basis of little or no change in fundamentals. If you are going to invest in this area, you must decide when this occurs whether you believe strongly in the Company and can ride out the storm or want to cut and run. However, sometimes it happens so rapidly that the latter is not an option. On the positive side, these manipulations can often lead to some excellent investment opportunities if the fundamentals remain intact, investor confidence returns and the shorts are forced to cover.
2.510 Posts
Pagina: «« 1 ... 83 84 85 86 87 ... 126 »» | Laatste |Omhoog ↑

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