Adsorption equilibrium of carbon dioxide on zeolite 1X at high pressures

Carbon dioxide (CO2) is a compound responsible for the greenhouse effect. One of the methods of CO2 capture from the gas stream is adsorption process. In this paper, the adsorption equilibrium isotherms of CO2 on zeolite 13X were measured at different temperatures (293.15 K, 303.15 K, 313.15 K, 323.15 K, 333.15 K, 348.15 K, 373.15 K, 393.15 K) and under pressures up to 2 MPa. These data were obtained using an Intelligent Gravimetric Analyzer (IGA-002, Hiden Isochema, UK). Selected multitemperature adsorption isotherm equations, namely Toth, Langmuir–Freundlich, and, Langmuir were correlated with experimental data

Regulation of carbon catabolism in Lactococcus lactis.

The Lactococcus lactis IL1403 is a lactose negative, plasmid free strain. Nevertheless, it is able to hydrolyze lactose in the presence of cellobiose.In this work we describe identification of a gene involved in this process. The gene was found to be homologous to the sugar catabolism regulator, ccpA. The complete DNA sequence and analysis of the region encoding the ccpA gene is also presented.</p

Regulation of carbon catabolism in Lactococcus lactis.

The Lactococcus lactis IL1403 is a lactose negative, plasmid free strain. Nevertheless, it is able to hydrolyze lactose in the presence of cellobiose. In this work we describe identification of a gene involved in this process. The gene was found to be homologous to the sugar catabolism regulator, ccpA. The complete DNA sequence and analysis of the region encoding the ccpA gene is also presented