Can a Travel Authorization expense line be paid via Payables without creating an Expense Report?

Is it possible to pay an expense line from the Travel Authorization via Payables once the TA is approved? For instance our employees often travel to conferences and a registration fee is payable via check prior to the trip occurring and the expense report being filed. Wanted to see if it was possible to generate a payment/invoice to be paid without a voucher being entered in Payables manually.