Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Microcap & Penny Stocks : Rentech(RTK) - gas-to-liquids and cleaner fuel -- Ignore unavailable to you. Want to Upgrade?

To: Howard Williams who wrote (8125)	9/2/1998 2:47:00 PM
From: John M	Read Replies (1) \| Respond to of 14347

HW, << Cobalt catalysts have problems with the contaminants, iron does not.>> This is really not true. Contaminants like H2S, CO2 all cause major problems with an iron catalyst. - H2S must be removed from the gas PRIOR to the gas going into the reactor. If not, you get ironsulfide which will destroy the catalyst - CO2 just gets in the way and doesn't hurt either catalyst but will certainly affect efficiencies of conversion. Best to remove it up front to make reactors smaller. - Excess oxygen in the syngas feed will cause iron oxide (rust) to form using up the iron in the catalyst and forceing replacement. Iron is tolerant of lower H2/CO ratios because of its water shift reaction, but contaminants will screw up either system and cause more catalyst consumption. JCM